Question 8
The amounts of carbon dioxide and methane in Earth's atmosphere are increasing. Carbon dioxide and methane are greenhouse gasses. The increasing levels of carbon dioxide and methane will cause

options:

the overall temperature of Earth to decrease.

Carbon dioxide and methane do not impact the climate of Earth the overall

temperature of Earth to increase.

the overall temperature of Earth will remain the same

D:the overall temperature of Earth to increase.

Explanation:

I took the test :)

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.