Question

energy from the sun: 4. true or false: without photosynthesis, there would still be plenty of oxygen left to breathe. life without light: 5. where does chemosynthesis occur?

Explanation:

1. Photosynthesis by plants produces a large - portion of the oxygen we breathe. Without it, oxygen levels would rapidly decline.
2. Chemosynthesis occurs in environments where there is no sunlight, such as deep - sea hydrothermal vents, where bacteria use chemical energy to produce organic compounds.

Answer:

1. False
2. Deep - sea hydrothermal vents and other environments without sunlight