MCQ Solid wastes, Agrochemicals and Radioactive wastes, Class 12 Biology

1. There will be total 10  MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying.

1. Which of the following elements is responsible for Minamata disease?

Pb

Cd

Fe

Hg

Question 1 of 10

2. Large-scale disposal of solid waste in low areas of the ground and then covering it with earth is called

Deep well injection

Landfill

Pyrolysis

Incineration

Question 2 of 10

3. Which of the following correctly represents the stages in solid waste management?

Segregation - Collection - Transportation - Dumping

Transportation - Collection - Segregation - Dumping

Collection - Segregation - Transportation - Dumping

Collection - Segregation - Dumping - Transportation

Question 3 of 10

4. Substances which can be broken down into non-poisonous substances by the action of microorganisms are said to be

Non-degradable

Non-biodegradable

Non-decomposable

Biodegradable

Question 4 of 10

5. What is the 3R approach?

Reduce, Remove and Replenish

Reduce, Remove and Reuse

Reuse, Replenish and Remove

Reduce, Reuse and Recycle

Question 5 of 10

6. Pollution from animal excreta and organic waste from the kitchen can be most profitably minimised by

Using them directly as biofertilisers

Using them for producing biogas

Storing them in underground storage tanks

Vermiculture

Question 6 of 10

7. Which of the following is an effect of waste accumulation?

Urbanisation

Over population

Health problems

Industrialisation

Question 7 of 10

8. Which one of the following is mainly produced by the activity of anaerobic bacteria on sewage?

Mustard gas

Laughing gas

Marsh gas

Propane

Question 8 of 10

9. Allethrin is a

Herbicide

Fertiliser

Growth hormone

Insecticide

Question 9 of 10

10. How should the hazardous waste be disposed of?

It should be disposed of after proper treatment.

It should be thrown in the sea.

It should be burnt.

It should be disposed of randomly.

Question 10 of 10

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