True or
for false in the blank at the left or each statemene.
the revolution of the earth around the sun and the tilt of the earth's axis cause
the changing of the seasons.

The revolution of earth around the sun and the tilt of earth’s  axis cause the changing of seasons. TRUE

Explanation:

Earth is slightly tilted at its axis. This causes a change in the amount of sunlight reaching each hemisphere. Due to the tilt one hemisphere will be closer to the sun while the other will be at a greater distance.  When the earth revolves around the sun , the hemisphere that is closer to the sun changes.

The hemisphere closer to the sun will experience summer and the hemisphere away from the sun will experience winter.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.