instruction:
You are given a sentence and your task is to generate another sentence that supports the given input.
question:
All the elemental oxygen now in the earth's atmosphere was put there by photosynthetic plants and bacteria.
answer:
On a global scale, plants and other photosynthetic organisms have generated all of the oxygen in the air.


question:
As the population grows, competition for food also grows.
answer:
As the population grows, competition for food grows.


question:
Being self-luminous makes stars different from planets, moons, asteroids, and comets, all of which shine by reflecting sunlight.
answer:

The setmoons, planets, and comets contains only objects that shine as a result of reflected light.