Q2. Explain why life could not exist without the activities of microorganisms.

In explanation.

Explanation:

Why life could not exist without the activities of microorganisms?

-Without microorganisms, the entire food web would collapse. Shallower oceans would fare a little better. So would our crop plants; without microbes to provide plants with nitrogen, the Earth would experience a catastrophic de-greening.

-We wouldn't be able to digest our food properly without our gut bacteria. Crops around the world would start to die without the nutrients generated by microbes. Dead fish would float to the surface of lakes and oceans, and ocean life would be extinguished.

-Nitrogen would not be available in a form that humans and plants could use.

-The supply of O2 would eventually be depleted if microorganisms were not available to replenish it.

-A wide variety of materials would pile up if microorganisms were not present to degrade them.

-Hope this helps.

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a plastic spoon that has a temperature of 78° f is placed into a bowl of soup that has a temperature of 84° f. which of these correctly describes what will happen?

energy as heat moves from the soup to the spoon.