Question

hiProject in biology

1.Write 10 lines on the usefulness of microorganisms in our lives
2. Write a paragraph in your own words on preparation of soil

Project in chemistry
1. Explain in your own words why plastic containers are favoured for storing food .
2. Avoid plastics as far as possible. Comment on this advice

Project in Physics
1. Name the forces acting on a plastic bucket containing water held above ground level in your hand. Write a note as to why the forces acting on the bucket do not bring a change in its state of motion

Do the projects separately and write your names clearly with block letters . Do the projects in A4 size paper . When I ask you to submit please submit it without fail .​

Answer 1

Answer:

Answer:

They are used in winemaking, baking, pickling and other food-making processes.

Alcoholic fermentation by yeast is widely used in the preparation of wine and bread.

A bacterium Lactobacillus promotes the formation of curd.

Microbes are used to reduce pollution.

They are used to increase soil fertility by fixing atmospheric nitrogen.

Microbes are also useful in preparing many medicines and antibiotics.

Certain microbes are also used in the biological treatment of sewage and industrial effluents.

Some microorganisms are taken as probiotics, that are believed to provide health benefits when consumed.

Bacteria are also involved in making cheese.

Acetobacter acetic is used for producing acetic acid from alcohol.