Answer:
b.burning of fossil fuels
Explanation:
Burning fossil fuels has been considered controversial since it produces tons and tons of CO2 and CO2 is considered a green house gas which is contributing to climate change.
Photosynthesis and planting trees actually sucks Carbon dioxide out of environment. Perspiration doesn't produce CO2.
Answer:
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air.
Explanation:
Answer:
Fibula
Explanation: is not a tarsal bone
Answer: in order for a scientific investigation to be valid A hypothesis must be tested throughout a Scientific investigation that can gather evidence and support it.
Explanation: in any scientific investigation you have to have a testable hypothesis, without your hypothesis it’s not really a scientific investigation.
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