Tag: waste and its management

Questions Related to waste and its management

Which of the following get contaminated by solid wastes?

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  1. Soil

  2. Air

  3. Noise

  4. All of the above

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Correct Option: A

Plains with snow, ice, and frozen soil for most of the year are found in ____________.

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  1. Chapparal

  2. Taiga

  3. Tundra

  4. Savannah

  5. Desert

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Correct Option: C
Explanation:

Tundra receives very little precipitation, around 25 cm year, mostly in the form of snow. The area is covered by snow for most part of the year. The highest summer temperature is $12^0$

 It is unable to melt snow except for the upper 10-20 cm. The remaining Part of the soil is in permanently frozen (Permafrost) condition.
So, the correct answer is 'Tundra'

The relationship among different types of soil water can be summed up by the following equations. Which one is correct?

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  1. Chresard = echard + hollard

  2. Chresard = hollard - echard

  3. Echard = hollard + chresard

  4. Hollard = chresard - echard

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Correct Option: B
Explanation:

Plants require water for the metabolic actions which is absorbed by the roots of the plants. The total water which is poured in the soil is not available to the plants.bThe total water content present in the soil is called hollard. Chresard is 75% of capillary water, water actually available for plants so that they can absorbed for their growth. Echard is remaining water. Therefore, correct relationship between them is Chresard + Echard = Hollard or Chresard = Hollard - echard. Thus, the correct answer is option B.

___________ is one of the causes of soil pollution:

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  1. Dumping of plastic

  2. Dumping of harmful chemical wastes

  3. Industrial effluents

  4. All of the above

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Correct Option: D
Explanation:

Introduction of an undesired component in the natural ecosystem is called as pollution. Wastes like plastic, chemicals, industrial effluents etc., causes damage to the natural micro flora of soil. Due to this soil pollution is lead.

Which amongst the following is one of the effects of soil pollution?

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  1. Minimata disease

  2. Lead poisioning

  3. Bio-accumulation

  4. Higher growth yield

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Correct Option: C
Explanation:

Presence of unwanted contaminant in soil is called soil contamination. The deposition of pesticides on fruits and vegetables lead to its accumulation in fatty tissues of the host. This phenomenon is called bio accumulation.

The pesticides need to be replaced because these 

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  1. are very costly

  2. cannot be stored for a long time

  3. are mostly toxic and non-biodegradable

  4. cause abnormalities in, the target population.

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Correct Option: C
Explanation:

The toxicity of pesticides is affecting the human health due to excessive accumulation of the pesticides in the food. Pesticides mixed with water are non-biodegrable in nature, due to which various water borne diseases are occurring in humans. 

Following are the human activities that increase soil erosion except

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  1. The tillage of agricultural lands

  2. Deforestation

  3. Roads and urbanization

  4. Planting on slopes

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Correct Option: D
Explanation:

Explanation: Overgrazing, over cropping and or deforestation can lead to desertification the spread of desert like lands due to these human activities accelerating natural erosion of soil.

Which among the following is a soil pollutant?

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  1. Organo-chlorines

  2. Mercury

  3. Lead

  4. Arsenic

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Correct Option: A
Explanation:

Presence of unwanted contaminant in soil is called soil contamination. Non-biodegradable chemical pesticides are the largest source of soil pollutant.  organo-chlorides are group of insecticides based on chlorinated hydrocarbons (organochlorines).

Contamination of soil system by considerable quantities of chemicals and substance is known as

business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

  1. Water pollution

  2. Soil Pollution

  3. Air pollution

  4. Noise Pollution

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Correct Option: B

Which of the following is the common term used for unwanted particles in the soil?

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  1. Antibiotics

  2. Eutrophication

  3. Xenobiotic

  4. None of the above

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Correct Option: C
Explanation:

Xenobiotics are the unwanted chemicals or particles of compounds which are found in the regions where generally they are not present. These are the foreign particles like the herbicides, pesticides, agrochemicals like fertilizers, etc. These are the chemicals which might interact with the bacteria and other microorganisms in the soil. This might affect the absorption of nutrients by the plants.

Thus, the correct answer is option C.