I believe the answer is retrovirus
Answer:
The water cycle is driven primarily by the energy from the sun. So basically the answer is D. the sun
Please correct me if I am wrong
Explanation:
A substance that modifies the transition state to lower the activation energy is termed a catalyst; a catalyst composed only of protein and (if applicable) small molecule cofactors is termed an enzyme. It is important to note that a catalyst increases the rate of reaction without being consumed by it.
Some organic methods of adding nitrogen to the soil include: Adding composted manure to the soil. ... Planting nitrogen fixing plants like peas or beans. Adding coffee grounds to the soil
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