What are two ways in which bacteria are crucial to life on earth?

Answer 1

Bacteria are all around us, some can eat oils, some can produce O2... some live in our bodies and produce potassium in the gut and also kill off other bacteria. they make food products like yogurt, and cheese.

Answer 2

here i cant explain it fully but i know one way: bacteria give nitrogen to plants and we humans get our source of nitrogen from plants.

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Answer 3

Bacteria are important for more than two reasons but two of these reasons are:

1. They are decomposers - they break down the chemical molecules of dead organisms. This releases the nutrients or chemicals from that organism's body back into the environment so it can be reused.

2. They help in nitrogen fixation - they capture nitrogen gas from the air and convert it to a form that plants can use.

Answer 4

Bacteria are really important in the environment because they can treat sewage water by decomposing the organic matter. They are also very important because they recycle the nutrients in the ecosistems by metabolizing organic matter into simple molecules (they help in the decomposition of a dead animal and feces, for example). They can also incorporate nitrogen from the atmosphere in organic compounds.

So, they are important to keep the equilibrium of nutrients (carbon and nitrogen) in the ecosystems.

Answer 5

to decompose dead things

in some medicine such as pennicilin

Answer 6

Bacteria helps decompose dead organisms, and some bacteria helps our bodies.

Answer 7

They are mainly responsible to degrade the man-made waste or other waste.