Question

1

Photosynthesis is an example of what?
A
one of philosophy's big ideas
B
one of Earth's key processes
С
one of humankind's best inventions
D
one of science's most well-known innovations

Answer 1

B. One of Earths key processes

Step-by-step explanation:

Photosynthesis is a process that keep oxygen in the air, keeps plants alive. It's vital both for humans and for the earth.