Fertilisers and Pesticides

Q.

What are the main sources of soil pollution?

Q.

Name two nitrogenous fertilizers.

Q.

Name the following;
(i) A non-biodegradable pesticide.

Q.

How do pesticides harm soil?

Q. Integrated Pest Management aims for:

1. Reduction of ozone depleting substances
2. Biodiversity conservation
3. Control of water pollution
4. Control of CO₂ emission

Q.

Question 5
Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as

(a) eutrophication
(b) pollution
(c) biomagnification
(d) accumulation

Q.

What is biomagnification?

Q.

Why do insecticides kill insects but not humans?

Q. Rachel Carson's famous book 'silent spring' is related to

1. Pesticide pollution
2. Ecosystem management
3. Population explosion
4. Noise pollution

Q. Integrated Pest Management aims at

1. Reduction of ozone depleting substances
2. Biodiversity conservation
3. Control of water pollution
4. Control of CO₂ emission

Q.

What are the problems caused by the non-biodegradable wastes? [3 MARKS]

Q. IPM aims to control pests by using eco-friendly pest management techniques.

1. True
2. False

Q. Rachel Carson's famous book 'silent spring' is related to

1. Pesticide pollution
2. Noise pollution
3. Population explosion
4. Ecosystem management

Q. The major source of soil pollution is

1. pesticide
2. manure
3. smog

Q.

Endosulfan was used to kill tea mosquito bug in Kerala.

1. False
2. True

Q.

A crane had DDT level as $5$ ppm in its body. What would happen to the population of such birds? Explain giving reasons.

Q. Assertion [A]: Integrated Pest Management (IPM) is a broad approach for the economic control of pests without polluting nature.
Reason [R]: IPM uses naturally occurring compounds from plants, animals, fungi and bacteria as pesticides.

1. Both A and R are false
2. Both A and R are true and R explains A
3. A is true and R is false
4. Both A and R are true R does not explain A

Q.

Can biodiversity affect the ecosystem?

Q. What is the soil pollution?

Q. State whether true or false:
IPM aims to control pests by using eco-friendly pest management techniques.

1. True
2. False

Q. Which of the following is not a source of Soil Pollution?

1. Pesticides
2. Biomedical Wastes
3. Industrial Wastes
4. None of the above

Q.

Select the group of different substances from the given options which makes the soil rich in nutrients.

1. Wrappers of chips, Waste CDs, Unused batteries

2. Urea, DDT

3. Kitchen waste, leaves, fruit peels

4. Polethlene bags, crokery items, softdrink tins

Q. What are the measures to control soil pollution?

Q.

Air contains mostly nitrogen as its component.

1. True

2. False

Q.

Which of the following is a microbial insecticide?

1. Bacillus polymixa

2. Bacillus subtilis

3. Bacillus thuringiensis

4. Bacillus brevis

Q. Soil pollution mainly occurs due to

1. Industrial wastes or Urban wastes
2. Agricultural practices or Biological agents
3. Radioactive pollutants
4. All of the above

Q. If a material is biodegradable, it means that it can be consumed by microorganisms.

1. True
2. False

Q. The introduction of particulates, biological molecules, or other harmful materials into Earth's atmosphere, causing diseases, allergies, death to humans, damage to other living organisms such as animals and food crops, or the natural or built environment is called ________.

1. air pollution
2. water pollution
3. industrial pollution
4. thermal pollution

Q.

Regarding the assertion and reason, choose the right option.
Assertion [A]: Green Revolution caused certain toxic effects to the environment.
Reason [R]: High inputs of fertilisers and pesticides are very harmful to the environment.

1. Both A and R are true and R explains A
2. A is true and R is false
3. Both A and R are true R does not explain A
4. Both A and R are false

Q. Detergents cause
(a) noise pollution
(b) air pollution
(c) water pollution
(d) none of the above