Biodegradable Waste

Q.

Substances that are broken down by biological processes are said to be biodegradable.

1. True

2. False

Q.

For what newspaper can be recycled?

Q. Which type of worms are used in vermicompost?

1. Round worms
2. Flat worms
3. Earthworms
4. Pin worms

Q.

What is the 5R principle and should be followed as a responsible citizen?

Q.

Nowadays, the usage of bioplastics is promoted more than ordinary plastics because _____________ .

1. All bioplastics are biodegradable or compostable.

2. Bioplastics break down under the influence of natural elements

3. Compostable products can be turned into compost within around six months

4. All of the above

Q.

Biomagnification is also known as ________.

Q.

Question 7
What are the problems caused by non-biodegradable wastes that we generate?

Q. What are biodegradable and non-biodegradable wastes? Give two examples for each.
[3 Marks]

Q.

___ is used to degrade the biodegradable waste.

Q.

What makes plastics non-biodegradable?

1. Plastics cannot be decomposed by microbes.

2. Plastics require high temperature to degrade.

3. Plastics have organic additives in it.

4. Plastics have a lot of carbon in it.

Q. Which type of worms are used in vermicompost?

1. Round worms
2. Flat worms
3. Earthworms
4. Pin worms

Q.

Which of the following factors affects the type of industrial waste produced?

1. Location of the industry

2. Process by which the product is manufactured

3. Type of sludge

4. Nature of raw material