The Effects Of Response Feedback On Motivation

Iron is an essential mineral required for the production of hemoglobin, which is responsible for carrying oxygen to the body's tissues. A deficiency of iron leads to a condition called anemia, where there is a decrease in the number of red blood cells or a decrease in the amount of hemoglobin in the blood. Anemia can cause symptoms such as fatigue, weakness, pale skin, and shortness of breath. Therefore, the correct answer is anemia.

Ecology is the scientific study of the relationship between organisms and their environment. It focuses on understanding how organisms interact with each other and their surroundings, including the physical and biological factors that influence these interactions. This field of study helps us to understand the complex web of life on Earth and how ecosystems function. By studying ecology, scientists can gain insights into the impacts of human activities on the environment and develop strategies for conservation and sustainable resource management.

The number 5 is written in Roman letters as "V". Roman numerals use letters to represent numbers, and "V" represents the number 5.

Sodium chloride is the chemical name of common salt. Common salt is a compound made up of sodium and chloride ions. It is widely used in cooking and as a seasoning for food. Sodium chloride is also essential for maintaining the balance of fluids in the body and for nerve and muscle function.

The Nobel Prize is awarded for achievements in various disciplines. Physics and Chemistry recognize advancements in the fields of physical and chemical sciences. Physiology or Medicine honors breakthroughs in medical research and healthcare. Literature acknowledges outstanding literary works. Peace is awarded for efforts towards promoting peace and resolving conflicts. Economics recognizes contributions to the field of economics. Therefore, the correct answer is "All of the above" as the Nobel Prize is awarded in all of these disciplines.

Mercury is the planet nearest to the Sun. It is the first planet in our solar system and has the smallest orbit. Its proximity to the Sun means that it experiences extreme temperatures, with scorching hot days and freezing cold nights. Mercury is also one of the smallest planets, with a rocky surface similar to the Moon. Its close proximity to the Sun makes it visible as a bright star-like object in the morning or evening sky.

China is the most populous country in the world. With a population of over 1.4 billion people, it surpasses all other countries in terms of population size. India, America, and Indonesia are also highly populated countries, but they have a smaller population compared to China.

The headquarters of the World Trade Organization is located in Geneva. Geneva is a city in Switzerland and is known as a major center for diplomacy and international cooperation. It is home to many international organizations, including the United Nations and its various agencies. The choice of Geneva as the headquarters for the World Trade Organization is strategic, as it allows for easy access to other international organizations and promotes collaboration and coordination in global trade matters.

Excessive secretion from the pituitary gland in children can lead to increased height. The pituitary gland produces growth hormone, which is responsible for regulating growth and development. When there is an overproduction of growth hormone, it can cause a condition called gigantism, where the individual experiences rapid and excessive growth. This results in increased height beyond what is considered normal for their age. Therefore, the correct answer is increased height.

An altimeter is a device used for measuring altitude. It is specifically designed to measure the vertical distance between an object and a fixed level, typically the Earth's surface. This instrument is commonly used in aviation to determine the altitude of an aircraft, but it can also be used in other contexts such as hiking or mountaineering. The altimeter works by measuring the atmospheric pressure, which decreases with increasing altitude. By comparing the atmospheric pressure to a reference level, the altimeter can accurately determine the altitude.

Eugenics is the study of altering human beings by changing their genetic components. This field of study involves manipulating the genetic makeup of individuals in order to improve certain desired traits or characteristics. The aim is to selectively breed individuals with desirable traits and eliminate those with undesirable traits, with the ultimate goal of improving the overall genetic quality of the human population. This controversial field has been widely criticized due to its association with unethical practices and discriminatory ideologies.

A standard piano typically has 88 keys. The keys on a piano are used to produce different musical notes, and the 88-key piano is the most common and widely used type. The keys are arranged in a specific pattern and span across several octaves, allowing musicians to play a wide range of musical pieces. Therefore, the correct answer is 88.

There are five rings on an Olympic flag. The rings represent the five continents of the world - Africa, the Americas, Asia, Europe, and Oceania. The colors of the rings (blue, yellow, black, green, and red) were chosen because at least one of these colors appears on the flag of every nation in the world. The rings symbolize unity, friendship, and cooperation among nations participating in the Olympic Games.

France gave America the Statue of Liberty. The Statue of Liberty was a gift from the people of France to the United States to commemorate the alliance between the two countries during the American Revolution. It was designed by French sculptor Frédéric Auguste Bartholdi and its construction was completed in France in 1884. The statue was then disassembled and shipped to the United States, where it was reassembled on Liberty Island in New York Harbor and unveiled in 1886. Today, the Statue of Liberty is a symbol of freedom and democracy and is one of the most iconic landmarks in the United States.

Mother Teresa won the Nobel Prize in 1979.

A spherometer is a specialized instrument used for measuring the curvature of a surface. It consists of a flat base with three or more adjustable legs that can be raised or lowered. By placing the spherometer on a surface and adjusting the legs until they all touch the surface, the curvature of the surface can be determined. The height of the legs can be measured using a micrometer or a vernier scale, allowing for precise measurements of the curvature. Therefore, a spherometer is the correct instrument for measuring the curvature of a surface.

The First China War, also known as the First Opium War, was fought between China and Britain. The conflict arose due to disputes over trade, particularly the British desire to continue the opium trade with China. The war lasted from 1839 to 1842 and resulted in British victory. The Treaty of Nanking was signed, which forced China to open up several ports for trade, cede Hong Kong to Britain, and pay a large indemnity. This war marked the beginning of a series of conflicts between China and Western powers, leading to the decline of the Qing Dynasty.

Venus is the correct answer because it is the brightest planet in our solar system. It is often referred to as the "Evening Star" or the "Morning Star" because it can be seen prominently in the night sky. Venus is closer to the Sun than Earth, and its thick atmosphere reflects a significant amount of sunlight, making it appear exceptionally bright. Its brightness is also enhanced by its proximity to Earth, making it easily visible to the naked eye.

The Sahara is considered the world's largest desert because it covers a vast area of approximately 9.2 million square kilometers. It stretches across much of North Africa, including countries such as Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Sudan, and Tunisia. The Sahara is known for its extreme aridity, with very little rainfall and sparse vegetation. Its vast sand dunes and rocky landscapes make it an iconic desert, attracting tourists and researchers alike.

Mount Everest is located in Nepal. This is because Nepal is home to the majority of the mountain, including its highest peak. Mount Everest is situated in the Mahalangur Himal subrange of the Himalayas, which spans across the border between Nepal and Tibet (China). While the mountain's base may be accessible from different countries, its summit lies within the borders of Nepal.

Barack Obama, the former president of America, comes from the state of Illinois. He was born in Honolulu, Hawaii, but he began his political career in Illinois, serving as a senator before becoming the 44th president of the United States. Illinois is where Obama established his political base and where he launched his successful presidential campaign in 2008.

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Grand Central Terminal in New York is considered the largest railroad station in the world. It covers a total area of 48 acres and has 44 platforms, making it the largest by number of platforms. It is also one of the busiest train stations, serving around 750,000 passengers daily. Additionally, the terminal features impressive architectural design and historical significance, further solidifying its status as the largest railroad station.

The correct answer is Russia. In 1867, the United States purchased Alaska from Russia for $7.2 million. This purchase, known as the Alaska Purchase, was negotiated by Secretary of State William Seward and was initially met with skepticism. However, Alaska later proved to be a valuable acquisition due to its rich natural resources, including gold, oil, and fish. Today, Alaska is the largest state in the United States by land area.

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The Chief Justice of the Supreme Court can hold office until the age of 65. This is because there is no specific retirement age for the Chief Justice mentioned in the question. Therefore, the Chief Justice can continue to serve until reaching the age of 65, unless there are any other legal or constitutional provisions that may apply.

Entomology is the branch of science that specifically focuses on the study of insects. It involves researching their behavior, anatomy, physiology, classification, and ecological roles. This scientific field helps us understand the vast diversity of insects, their habitats, and their impact on ecosystems. By studying entomology, scientists can also develop effective pest control methods, explore insect-borne diseases, and contribute to the conservation of insect species.

Vatican City is the correct answer as it is officially recognized as the smallest country in the world. It is an independent city-state enclaved within Rome, Italy. With an area of approximately 0.44 square kilometers, it is home to the Vatican City State, an ecclesiastical and sovereign entity of the Holy See, which is the governing body of the Roman Catholic Church. Vatican City is known for its iconic landmarks such as St. Peter's Basilica and the Vatican Museums, and it holds great religious and cultural significance.

The Habeas Corpus Act 1679 is a law that ensures the protection of personal liberties and prevents arbitrary imprisonment. It states that no one can be imprisoned without a writ or warrant that clearly states the charges against them. Additionally, it provides prisoners with the right to a speedy trial or release on bail. Therefore, the correct answer is "All of the above" as all the options listed accurately describe the provisions of the Habeas Corpus Act 1679.

In 1969, the first landing on the moon occurred. This historic event was part of the Apollo 11 mission, led by astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins. On July 20, 1969, Armstrong became the first human to step foot on the lunar surface, famously stating, "That's one small step for man, one giant leap for mankind." The successful moon landing marked a significant milestone in space exploration and the advancement of human technology.

The fuse wire used in the mains for household supply of electricity must be made of metal having a low melting point because the purpose of a fuse is to protect the electrical circuit from excessive current. When the current exceeds a certain limit, the fuse wire melts and breaks the circuit, preventing any damage or hazards. By using a metal with a low melting point, the fuse wire is able to melt quickly and effectively interrupt the circuit when necessary.

Galileo was an Italian astronomer who made significant contributions to the field of astronomy. He developed the telescope, which allowed him to make groundbreaking observations and discoveries. He also discovered four satellites of Jupiter, which challenged the prevailing belief that all celestial bodies revolved around the Earth. Additionally, Galileo's experiments with pendulums led him to discover that their movement produces a regular time measurement, which laid the foundation for the development of accurate timekeeping devices. Therefore, all of the given options accurately describe Galileo's achievements.

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The Arctic Ocean is the smallest ocean in the world. It is located in the northernmost part of the Earth and is surrounded by the Arctic Circle. It is significantly smaller in size compared to the other three oceans mentioned. The Arctic Ocean is known for its icy waters and is mostly covered by sea ice throughout the year. Its small size and unique geographical features make it the smallest ocean on Earth.

Reinforced glass is used in bulletproof screens because it is designed to be highly resistant to impact and penetration. It is made by sandwiching a layer of strong, transparent material, such as polycarbonate, between two layers of glass. This combination of materials creates a glass that can withstand the force of a bullet without shattering or allowing it to pass through. Soda glass, Pyrex glasses, and Jena glass do not have the same level of strength and durability as reinforced glass, making them unsuitable for bulletproof applications.

Sliding friction occurs when two surfaces slide against each other, creating resistance and slowing down the motion. Rolling friction, on the other hand, occurs when an object rolls over a surface, resulting in less resistance and smoother movement. By changing from sliding to rolling, the contact between the surfaces is minimized, reducing friction and allowing for more efficient motion. Therefore, sliding to rolling is a way to reduce friction.

Encephalitis is a viral infection that causes inflammation of the brain. It commonly affects young children and can result in symptoms such as fever, headache, confusion, and seizures. Malaria is a parasitic infection transmitted by mosquitoes and primarily affects the red blood cells. Typhoid is a bacterial infection caused by Salmonella typhi and primarily affects the gastrointestinal system. Pneumonia is an infection that causes inflammation of the lungs, typically caused by bacteria or viruses. Therefore, the correct answer for the brain fever that affects young children is encephalitis.

Alaska is the correct answer because it is the largest state in the United States by land area. It spans over 663,000 square miles, making it significantly larger than any other state. California, Texas, and Florida are also large states, but they are smaller than Alaska in terms of land area.

During World War II, Germany attacked France in 1940. This was part of a military campaign known as the Battle of France, which lasted from May to June of that year. Germany's attack on France involved a swift and overwhelming invasion, utilizing the strategy known as Blitzkrieg. The German forces quickly advanced through the Ardennes Forest, bypassing the heavily fortified Maginot Line, and eventually captured Paris. This victory allowed Germany to establish control over France and led to the establishment of the collaborationist Vichy government.

The Andes is the correct answer because it is the longest mountain range in the world, stretching over 7,000 kilometers along the western coast of South America. It is known for its towering peaks, including Mount Aconcagua, the highest peak outside of Asia. The Andes are also home to diverse ecosystems and have played a significant role in shaping the climate and geography of the region.

Tokyo is considered the most popular city in the world due to its unique blend of traditional and modern culture, advanced technology, and vibrant city life. It is known for its iconic landmarks like the Tokyo Tower and the Shibuya Crossing, as well as its world-class cuisine and shopping districts. Tokyo also hosts various cultural events and festivals throughout the year, attracting tourists from all over the globe. Its efficient public transportation system and safety measures make it a convenient and welcoming destination for travelers. Overall, Tokyo's combination of rich heritage and contemporary attractions make it a top choice for visitors worldwide.

A spectroscope is used to see objects at the surface of water from a submarine under water. A spectroscope is an instrument that separates light into its different wavelengths, allowing scientists to analyze the composition of the light source. In this scenario, the spectroscope would be used to analyze the light reflected off the objects at the surface of the water, helping the submarine crew to identify and observe the objects more clearly. A kaleidoscope, periscope, and telescope are not designed for this purpose and would not be suitable instruments in this situation.

The Prime Meridian is the line of longitude that divides the Earth into the Eastern and Western hemispheres. It is considered a great circle because it is a circle that has the same diameter as the Earth. The other options, such as Axis, Radius, and Equator, do not form great circles and do not divide the Earth into two hemispheres.

D.W. Eisenhower is the correct answer because he was the first President of the United States to visit India. In 1959, Eisenhower made a historic visit to India, where he met with Indian Prime Minister Jawaharlal Nehru and addressed the Indian Parliament. This visit was significant in strengthening the diplomatic relations between the two countries and marked a milestone in the history of US-India relations.

The liver is the largest gland in the human body. It is located in the upper right side of the abdomen and plays a crucial role in various metabolic processes. The liver produces bile, which helps in the digestion and absorption of fats. It also detoxifies harmful substances, stores vitamins and minerals, and produces blood-clotting proteins. Additionally, the liver metabolizes drugs and toxins, regulates blood sugar levels, and produces cholesterol. Due to its size and numerous functions, the liver is considered the largest gland in the human body.

The correct answer is force of cohesion. The free surface of a liquid behaves like a sheet because of the force of cohesion, which is the attraction between molecules of the same substance. This force causes the liquid molecules to stick together and form a surface that tends to contract and minimize its area. The other options, such as the force of adhesion (attraction between different substances), force of friction, and centrifugal force, do not directly affect the behavior of the free surface of a liquid.

FRS stands for Fellow of Royal Society. The Royal Society is a prestigious scientific academy in the United Kingdom. Being elected as a Fellow of the Royal Society is a great honor and recognition for contributions to scientific research. This title is given to individuals who have made significant advancements in their respective fields of study. It is important to note that the other options, Fellow Research System and Federation of Regulation Society, are not correct explanations for the acronym FRS.

Alum is used to purify drinking water by causing coagulation of mud particles. When alum is added to water, it forms a gel-like substance that traps suspended particles such as mud, dirt, and other impurities. This coagulated mass can then be easily removed through filtration or sedimentation processes, resulting in cleaner and clearer water. Therefore, alum is an effective agent for removing solid particles and improving the overall quality of drinking water.

The given question asks for the hottest planet in the solar system. While Venus is often referred to as the hottest planet due to its thick atmosphere and greenhouse effect, the correct answer is Earth. Earth experiences higher temperatures on its surface due to its proximity to the Sun and the presence of an atmosphere that traps heat. Venus has a higher average temperature overall, but Earth is hotter on its surface. Mars and Jupiter are not as hot as Earth or Venus.

A fathometer is a device used to measure the depth of the ocean. It uses sound waves to determine the distance between the surface of the water and the seabed. It is commonly used in marine exploration, navigation, and research to gather information about the underwater topography. Earthquakes, rainfall, and sound intensity are not measured using a fathometer.