Introduction to Environmental Issues

Q. Substances that causes pollution are called ____ .

1. dust
2. wastes
3. smoke
4. pollutants

Q.

How noise pollution is harmful to human beings?

Q. Which of the following is a secondary air pollutant?

1. Carbon dioxide
2. Ozone
3. Carbon monoxide
4. Surfer dioxide

Q.

State the ways by which oxygen is removed from the atmosphere.

Q.

Human activities that lead to environmental degradation are

1. Burning of fossil fuels
2. Tools for hunting
3. Extensive agriculture
4. All of the above

Q. A is a substance introduced into the environment that has undesired effects or adversely affects the usefulness of a resource.

1. pollutant
2. nutrient
3. manure

Q.

Briefly, explain 'Swachh Bharat Abhiyan'. When it was launched and what are its objectives?

Q.

Which one of the following is an example of pollutant ?

(a) A rat entering your kitchen.

(b) $C{O}_2$ given out by the respiring organisms.

(c) The heat given out while cooking food.

(d) The dust raised during road-cleaning

Q.

Explain how respiration, combustion, and decomposition return carbon dioxide to the atmosphere.

Q. List the sources of soil pollution.

Q.

Name the type of waste generated in hospitals and pathological laboratories

Q.

What happens when ecosystems disrupted?

Q.

Which of the following is not an air pollutant?

1. ${\mathrm{N}}_2$

2. ${\mathrm{N}}_2\mathrm{O}$

3. $\mathrm{NO}$

4. $\mathrm{CO}$

Q. Anything that deteriorates the natural quality of the environment is called a _____ .

1. pollution
2. pollutant
3. waste
4. smoke

Q.

Fill in the blanks:

Ozone is present in the form of____ in the _____.

Q.

___are the substances that causes pollution.

Q. A _________ is a substance introduced into the environment that has undesired effects or adversely affects the usefulness of a resource.

1. nutrient
2. manure
3. pollutant

Q.

How does the pollutant nitrogen dioxide added in the atmosphere?

Q.

Photochemical smog always contains

1. Ozone

2. Methane

3. Phosphorus

4. Aluminium ions

Q. Match the column I with column II and mark the appropriate choice.

	Column I		Column II
(A)	Biodegradable pollutants	(i)	DDT
(B)	Non-biodegradable pollutants	(ii)	$S{O}_2$
(C)	Primary pollutants	(iii)	PAN
(D)	Secondary pollutants	(iv)	Sewage

1. (A) $\to$ (iii), (B) $\to$ (iv), (C) $\to$ (ii), (D) $\to$ (i)
2. (A) $\to$ (ii), (B) $\to$ (iii), (C) $\to$ (iv), (D) $\to$ (i)
3. (A) $\to$ (i), (B) $\to$ (ii), (C) $\to$ (iii), (D) $\to$ (iv)
4. (A) $\to$ (iv), (B) $\to$ (i), (C) $\to$ (ii), (D) $\to$ (iii)

Q. Which of the following is a biomedical waste?

1. Radioactive materials
2. Cell phones
3. Crop residues
4. Body parts

Q.

Is Sulfur Reducing Bacteria Harmful?

Q. Human activities that lead to environmental degradation are

1. Tools for hunting
2. Burning of fossil fuels
3. Extensive agriculture
4. All of the above

Q. In which all ways does pollutants enter our body?

1. Pollutants can enter directly through the skin
2. Through mucous membranes
3. Through food, water or air.
4. All of the above

Q. Regarding the assertion and reason, choose the correct option.
Assertion [A]: Inhabitants close to busy airports are likely to experience health hazards.
Reason [R]: Sound levels of jet planes usually exceed 170 dB.

1. Both A and R are correct and R explains A
2. Both A and R are correct but R does not explain A
3. A is correct but R is incorrect
4. Both A and R are incorrect

Q. Which of the following is most harmful for human body?

1. $CO$
2. $C{O}_2$
3. Oxides of nitrogen
4. Lead compounds

Q.

Anything that deteriorates the natural quality of the environment is called a ___

Q.

________is not a pollutant.

1. carbon-monoxide

2. mercury

3. oxygen

4. sulphur-dioxide

Q.

5th June is celebrated as

1. World Forest Day

2. ​​​​​​World Environment Day

3. World Red Cross Day

4. World Food Day

Q. Which of the following are types of water pollution?

1. Ground water pollution
2. None of above
3. Nutrient pollution
4. Both A and B