Q: What keeps the earth orbiting the sun? Choices: - variation - inertia - speed - gravity A:
gravity

(Question)
Q: Where do most cubozoans live? Choices: - arctic oceans - lakes - rivers - tropical oceans A:
(Answer)
tropical oceans

Ques: Q: Some plants open their leaves during the day to collect what? Choices: - moisture - precipitation - energy - sunlight A:
Ans: sunlight

(Q).
Q: The volume of a regularly shaped solid can be calculated from its what? Choices: - layers - density - mass - dimensions A:
(A).
dimensions

Ques:Q: Which system in the human body consists of the heart, a network of blood vessels, and blood? Choices: - cardiac system - nervous system - circulatory system - cardiovascular system A:

Ans:cardiovascular system

Question: Q: What do we call the solid form of hydrocarbons? Choices: - methane - shale - bauxite - coal A:
Answer:
coal