364 Best Science Questions and Answers (Q&A) - ProProfs Discuss

D.Anthonyda
Answered: Feb 08, 2018

To begin with, life began millions of years ago. It is believed that the dinosaurs lived over 250 million years ago, but there were fossils that are believed to be dating back to billions of...Read More

3 Answers

256 views

What is the empirical formula for this substance?

John Smith
Answered: May 11, 2024

Baco₃ The first answer simply restates the molar ratios and is not in an acceptable form as a formula. The common method is to divide each molar ratio by the smallest of the numbers in th...Read More

1 Answer

256 views

Is there anything that science cannot explain?

D.Anthonyda
Answered: Feb 08, 2018

There are many mysteries in lie that can’t be explained. Science can usually prove or disprove common occurrences or events that take place especially in nature. However, there are several...Read More

5 Answers

253 views

Which of the following is not an acidic material found in the kitchen?

D. gray, Builder
Answered: Jun 13, 2019

The correct answer to this question is baking soda. Also known as sodium bicarbonate, baking soda has many uses and benefits. Its most popular use is in baking, in which is helps cause the dough...Read More

2 Answers

252 views

How many counties are in Louisiana?

I.Rubiny
Answered: Aug 24, 2017

The answer is because Louisiana does not have any county, but rather parishes. If we are going to talk about parishes, we can answer 64. Louisiana covers an area of 111,898 square kilometers and...Read More

2 Answers

251 views

Why can we sometimes hear noises in the stomach during digestion?

J. Harty, Writer
Answered: Jan 27, 2021

The noise you hear in the stomach during digestion is related to the movement of food, liquid, digestive juice, and when there is air in the intestine. Abdominal sounds are made within the small...Read More

4 Answers

249 views

What is filtration?

D. Loukas, Maths Professor
Answered: Jan 18, 2021

Filtration is a physical, biological, or chemical procedure that separates solid matter and fluid from a mixture with a filter medium with a complex formation through which only fluid can pass....Read More

6 Answers

248 views

What is the difference between Cosmology and Astronomy?

W. Kaye, Ex-Marine
Answered: Jan 29, 2021

Astronomy is the study of locations and activities of the celestial bodies in space. Cosmology involves the knowledge of the structure, origin, and evolution of the universe. Astronomy is one of...Read More

5 Answers

247 views

What does the average rocket contain?

F. Hope
Answered: Jan 29, 2021

There are four major components to any full-size rocket. These include the structural system, the payload system, the guidance system, and the propulsion system. The structural design has all the...Read More

4 Answers

246 views

What is the more common name for a circumorbital hematoma?

K. Myers, Blogger
Answered: Feb 12, 2021

When you hear the term “circumorbital hematoma,” you are referring to something that people are very much familiar with, especially those who get into fights often, the “black...Read More

5 Answers

245 views

How is nuclear waste denuclearised?

M. Wright
Answered: May 17, 2018

Nuclear waste cannot be artificially denuclearized. High level nuclear waste such as used nuclear reactor fuel cells must be stored extremely carefully until its radioactivity is reduced to...Read More

4 Answers

245 views

Does Science believe in God?

C. Reyes
Answered: Jun 04, 2018

Science cannot believe in anything, only scientists. There will be a variety of views amongst scientists as they may come from one of very many countries. Some key scientists have been religious....Read More

2 Answers

244 views

How are oil deposits extracted?

W. Kaye, Ex-Marine
Answered: Jan 29, 2021

Petroleum companies extract crude oil from the planet using a hole in the earth’s surface termed an oil well. Crude oil is a liquefied form of petroleum, and refining crude oil facilitates...Read More

4 Answers

242 views

How is bubble wrap made?

M. Wright
Answered: May 23, 2018

The first bubble wrap manufacturing machine was made in 1957. The process to make bubble wrap starts with plastic resin pellets made of different materials. For example, nylon resin pellets are...Read More

2 Answers

241 views

What colour are the flowers of the Coffee arabica plant?

J. Harty, Writer
Answered: Jan 27, 2021

The color of the flowers of the coffee arabica plant is white. Coffee arabica is originally found in the southwestern highlands of Ethiopia. It is also found on Mount Marsabit in northern Kenya....Read More

4 Answers

240 views

Science Questions and Answers (Q&A)

Related Topics Of Science

Related