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IrinaK [193]
2 years ago
8

Why does mature soil contain the why does mature contain most humus?

Biology
1 answer:
barxatty [35]2 years ago
4 0

Answer:

D. Has the most decomposed organic material from trees and vegetation

Explanation:

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Explanation:

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3 years ago
Snails and insects belong to which group of organisms?  
adoni [48]
<span>They are both invertebrates.</span>
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Why do you think your immune system sometimes fails and we get sick anyway?
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If you've noticed that you're often sick, feel fatigued or have other nagging symptoms you can't figure out, it may mean your immune system is weakened (OwO)

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Your immune system can also be weakened by smoking, alcohol, and poor nutrition. AIDS. HIV, which causes AIDS, is an acquired viral infection that destroys important white blood cells and weakens the immune system. People with HIV/AIDS become seriously ill with infections that most people can fight off.

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