Tag: sources of waste

Questions Related to sources of waste

The pesticides need to be replaced because these 

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

  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

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  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. 

Acidification of soil means

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  1. Increase in H$^+$ ions

  2. Increase in pH

  3. Decrease in pH

  4. Both A and C

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Correct Option: D