B. Plants
Explanation:
Plants are the main producers of the world's total oxygen output into the atmosphere.
Oxygen is a by product of photosynthesis in plant.
- During photosynthesis, green plants manufacture their food using carbon dioxide and water in the presence of sunlight.
- They produce glucose in the process.
- The by product of this process is oxygen gas.
- Oxygen gas is released into the atmosphere by this process.
Learn more:
Photosynthesis brainly.com/question/4216541
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Answer:
1 km= 1000 meters
9 km= 9000 meters
19 km= 19000 meters
9000
+19000
----------
28000 meters
Explanation:
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Explanation:
Answer:
the study of genetics. all living things require energy
They form natural gas or fuel and coal.
Due to the gravitational pull
