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51.	Which metal has unpleasant effect on human health ? A) gold B) silver C) lead D) copper
Answer» Correct option is C) lead

Discussion

52.	What will happen if you throw the wastes wherever you want?
Answer» 1. They pollute our surroundings. 2. These wastes cause land pollution. 3. These wastes spread diseases. 4. They show effect on the health of human beings.

52.

What will happen if you throw the wastes wherever you want?

Answer»

1. They pollute our surroundings.

2. These wastes cause land pollution.

3. These wastes spread diseases.

4. They show effect on the health of human beings.

Discussion

53.	Microbial decomposition of organic wastes generate large amounts of A) ethaneB) propane C) methane D) acetylene
Answer» Correct option is C) methane

Discussion

54.	Soil pollution can be prevented by A) limit construction in sensitive area B) adopting four R’s : Reduce, Reuse, Recycle and Recover C) applying biofertilizers and manures D) all the above
Answer» D) all the above

Discussion

55.	The average per capita solid wastes produced per day is A) 264 gms B) 364 gms C) 634 gms D) 346 gms
Answer» Correct option is B) 364 gms

Discussion

56.	Identify the correct matching from the following. 1) Biomagnification – Food chain 2) Solid wastes – Deforestation 3) Soil erosion – Burying the waste A) 1, 3 B) 2 only C) 1, 2 D) 1 only
Answer» Correct option is D) 1 only

Discussion

57.	D.D.T was not soluble in water but in …………. A) Phenol B) Fat C) Carbohydrate D) Benzene
Answer» Correct option is B) Fat correct option is (B) fat

Discussion

58.	Expanded form of D.D.T is ……………. A) Di Dehydro Tetracycline B) Diphenol Dihydro Tetrane C) Dichloro Diphenyle Trichloro Ethane D) Dichloro Diphenol Tri Ethane
Answer» C) Dichloro Diphenyle Trichloro Ethane

Discussion

Explore topic-wise InterviewSolutions in .

Which metal has unpleasant effect on human health ? A) gold B) silver C) lead D) copper

What will happen if you throw the wastes wherever you want?

Microbial decomposition of organic wastes generate large amounts of A) ethaneB) propane C) methane D) acetylene

Soil pollution can be prevented by A) limit construction in sensitive area B) adopting four R’s : Reduce, Reuse, Recycle and Recover C) applying biofertilizers and manures D) all the above

The average per capita solid wastes produced per day is A) 264 gms B) 364 gms C) 634 gms D) 346 gms

Identify the correct matching from the following. 1) Biomagnification – Food chain 2) Solid wastes – Deforestation 3) Soil erosion – Burying the waste A) 1, 3 B) 2 only C) 1, 2 D) 1 only

D.D.T was not soluble in water but in …………. A) Phenol B) Fat C) Carbohydrate D) Benzene

Expanded form of D.D.T is ……………. A) Di Dehydro Tetracycline B) Diphenol Dihydro Tetrane C) Dichloro Diphenyle Trichloro Ethane D) Dichloro Diphenol Tri Ethane