Question

State TWO reasons how bacteria can be useful to humans,
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Answer 1

They help to digest substances that the human body cannot break down, like many carbohydrates and things called short chain fatty acids. Friendly bacteria give you protection from the microorganisms that could cause serious illness.

Step-by-step explanation:

Answer 2

Answer: Creating products, such as ethanol and enzymes.

Making drugs, such as antibiotics and vaccines.

Making biogas, such as methane.

Cleaning up oil spills and toxic wastes. Bacteria have long been used by humans to create food products such as cheese, yoghurt, pickles, soy sauce and vinegar. We are also able to use bacteria to break down our sewage and to clean up oil spills.

Step-by-step explanation: