Displaying questions 31 - 40 of 53
31.
The force that opposes motion is called?
32.
Water covers approximately how much of Earth's surface?
33.
The study of fossils is called?
34.
The chemical formula for carbon dioxide is?
35.
Which planet is known for its rings?
36.
The powerhouse of the cell is?
37.
Which vitamin helps in blood clotting?
38.
The speed of light is approximately?
39.
Which organ helps in detoxifying chemicals in the human body?
40.
The study of Earth's atmosphere is called?