Which of these statements is true and can be illustrated by the image?

A. All planets, as well as the Sun, orbit around Earth, making it the center of the solar system.

B. The gravitational force exerted by Earth on objects is directed downward towards Earth's center.

C. Gravitational forces are exerted in all directions against Earth's atmosphere, causing objects to fall downward.

D. Forces from all other objects in the solar system, like the Sun and other planets, exert forces on Earth that keep it in motion.

The answer to your question is the second choice

Explanation:

From the image, we discard the first option because the only planet that we observe is the earth and the description mentions all planets and the sun.

The right answer is letter B because in the image we observe the earth and the arrows that represent the force exerted by the earth downwards directed to the center of the earth.

Letter c is wrong because it mentions gravitational forces in all directions and the forces in the image go in only one direction.

Letter D is incorrect because we can see only the earth.

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.