Environmental Effects of Plastic

Q.

What is polyblend?

Q.

What is the 4R principle?

1. Reduce, Reuse, Recycle and Recover

2. Retain, Reuse, Recycle and Recover

3. Reduce, Reliable, Reuse and Recover

4. Reduce, Retain, recycle and recover

Q.

As a responsible citizen, what steps should be taken by us to decrease the adverse effects of plastic on the environment? [5 MARKS]

Q.

Which of the following is biodegradable pollutant?

1. Domestic waste

2. DDT

3. Mercury salts

4. Aluminum foil

Q. Do plastics react with the acids like sulphuric acid ? And if they do so, then can we characterise them as non corrosive?

Q.

Explain how, the use of plastic has a bad effect on the environment.

Q.

Plastics are used in cars, aircrafts and spacecrafts because they are_____

1. lighter than metal

2. more lusturous in comparison to metals

3. heavier than metal

4. None of the above

Q.

How do carelessly thrown plastic bags (polythene bags) affect :

(a) dirty water drains and sewers ?

(b) animals (such as cows) ?

Q.

Plastic shows ___ property, hence it can be moulded to any shape.

1. Brittleness

2. Malleability

3. Plasticity

4. Tensility

Q. The term 'biodegradable' can be used to refer to substances that:

1. are not eco-friendly
2. do not conduct electricity
3. can be decomposed biologically
4. can be burnt easily

Q.

Assertion: We should avoid plastics as far as possible.
Reason: Plastic being light in weight and easy to handle is used as a substitute for glass and metal.

1. Assertion:- True

   Reason:- True

   Reason is not the correct explanation of assertion

2. Assertion:- True

   Reason:- True

   Reason is the correct explanation of assertion

3. Assertion:- True

   Reason:- False

4. Assertion:- False

   Reason:- True

Q.

____ bags are used as an alternative to plastic bags.

1. Jute

2. Cloth

3. Jelly

4. Food

Q. Give two examples each of, biodegradable and non-biodegradable material.

Q.

Assertion: Recycling plastic is very hazardous.

Reason: Scientists have now developed biodegradable plastics which will not rot.

1. Both assertion and reason are correct and the reason is the correct explanation of assertion.

2. Both assertion and reason are correct, but the reason is not the correct explanation of assertion.
3. The assertion is correct but the reason is incorrect.
4. The assertion is incorrect but the reason is correct.

Q.

What are the 4R's?

Q. Question 16
Why is it not advisable to burn plastic and synthetic fabrics?

Q. Use of plastic bags should be avoided because:

1. plastic is non-biodegradable
2. plastic emits toxic gases on burning
3. none of these
4. both $A$ and $B$

Q. State True or False.

Q. What are biodegradable and non-biodegradable substances?

Q. The term 'biodegradable' can be used to refer to substances that:

1. are not eco-friendly
2. do not conduct electricity
3. can be decomposed biologically
4. can be burnt easily

Q. Incineration of plastics causes:

1. nitrogen emission
2. sulfur emission
3. carbon emission
4. all of the above

Q. Plastic is harmful for packaging of food and medicines.

1. True
2. False

Q. Plastic is bad for environment because :

1. All of these
2. They harm aquatic life
3. They are non-biodegradable
4. They are toxin carrier

Q. Plastics are generally eco-friendly.

1. True
2. False

Q. Plastic pollution is a major threat to solid waste management. Give two suggestions to avoid the threat :

Q. Why are plastic bottles commonly used to store chemicals in a chemistry laboratory?

Q.

1. LPG
2. Plastic
3. CNG
4. None of them

Q. State true or false.

1. True
2. False

Q. Non-biodegradable substance releases harmful gases when burnt.

1. true
2. false

Q.

_______ is the introduction of contaminants into the natural environment causing adverse changes in it.

1. Polarization

2. Pollination

3. Pollution

4. Photosynthesis