Root Words Exam: Practice Quiz!

Explanation
Geothermal refers to the heat energy generated by the earth's core. This term specifically relates to the natural heat energy that is produced and stored within the earth, often used for various purposes such as heating and electricity generation. "Endothermic" refers to a chemical reaction that absorbs heat, while "heliothemic" and "geocentric" do not relate to heat energy generated by the earth's core. Therefore, the correct answer is "geothermal."

Explanation
An aquifer is an underground area that stores large amounts of water and allows it to flow. It is a natural underground reservoir or permeable layer of rock, sand, or gravel that holds and transmits water. Aquifers are important sources of water for human consumption, agriculture, and industry. They play a crucial role in maintaining water availability and supply. The other options, atmosphere, terrestrial, and exosphere, do not accurately describe an underground area that stores and allows the flow of water. Therefore, the correct answer is aquifer.

Explanation
The term "heliocentric" refers to the belief or model that the sun is at the center of the solar system, with the planets, including Earth, orbiting around it. This concept was proposed by Nicolaus Copernicus in the 16th century, challenging the prevailing geocentric model that placed Earth at the center. The heliocentric model was later supported by observations and calculations made by astronomers like Galileo Galilei and Johannes Kepler. This understanding revolutionized our understanding of the solar system and paved the way for modern astronomy.

Explanation
The root words "bi-" and "di-" both represent the number two (2). "Bi-" is derived from the Latin word "bis" and "di-" is derived from the Greek word "dis". Both prefixes are commonly used to indicate the number two or a division into two parts. Therefore, the correct answer is both A and B.

Explanation
The suffix "-logy" is commonly used to refer to the study of a particular subject or field. In this case, "logy" refers to the study of something. The options "the air," "outside," "inside," and "all of the above" do not make sense in the context of the given question. Therefore, the correct answer is "the study of."

Explanation
The term "biosphere" refers to the thin layer of life that surrounds Earth. It encompasses all living organisms and their interactions with the environment. This includes the atmosphere, hydrosphere, and geosphere, as they all play a role in sustaining life on Earth. Therefore, the biosphere is the most appropriate term to describe the thin layer of life surrounding our planet.

Explanation
The term "hemisphere" refers to half of the planet. It is derived from the Greek words "hemi" meaning half, and "sphaira" meaning sphere. In geography, the Earth is divided into four hemispheres: Northern, Southern, Eastern, and Western. Each hemisphere represents one half of the Earth's surface.

Explanation
An endoskeleton refers to a skeleton that is located inside a living organism. This type of skeleton provides support, protection, and structure to the body. It is commonly found in vertebrates, including humans, where it consists of bones and cartilage. The endoskeleton allows for movement and flexibility while also providing support for the organs and tissues. In contrast, an exoskeleton is located on the outside of an organism, such as the hard shell of an insect or the shell of a turtle. The other options, hydoderm and subskeleton, are not commonly used terms in anatomy and do not accurately describe a skeleton inside a living organism.

Explanation
The equator is the imaginary line that divides the earth into equal parts north and south. It is located at 0 degrees latitude and is the longest line of latitude on the earth's surface. The equator is important because it helps to define the hemispheres of the earth - the northern hemisphere and the southern hemisphere. It also plays a crucial role in determining climate patterns and weather conditions around the globe.