Tag: for a pollution free nature

Quizzes (15) Questions (89)

Questions Related to for a pollution free nature

Multiple choice chemistry for a pollution free nature properties of soil soil pollution and its effects soil and soil pollution

Soil erosion is controlled by ________.

  1. planting trees on barren slopes

  2. reducing deforestation

  3. geotextiles

  4. all of above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Soil erosion is controlled by: 
Using geotextiles is an effective method because it also stabilizes soil
The simplest and most natural way to prevent erosion is through planting vegetation.
Reducing deforestation and substituting chemical manures by animal wastes also helps arrest soil erosion in the long term.

Multiple choice chemistry for a pollution free nature properties of soil soil pollution and its effects soil and soil pollution

Waste water from industries should not be used for irrigation without eliminating toxic chemicals from the effluent. This is a measure to control ________.

  1. air pollution

  2. water pollution

  3. soil pollution

  4. none of above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Waste water from industries should not be used for irrigation without eliminating toxic chemicals from the effluent.
It is a measure to control soil pollution.
This will also reduce the concentration of unwanted substances in the soil.

Multiple choice chemistry for a pollution free nature properties of soil soil pollution and its effects soil and soil pollution

Which of the following does not cause soil pollution?

  1. Industrial wastes

  2. Urban wastes

  3. Agricultural practices

  4. None of above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Industrial pollutants affect and alter the chemical and biological properties of soil.
With the advancing agro-technology, huge quantities of fertilizers, pesticides, herbicides and weedicides are added to increase the crop yield. 
Urban wastes comprise of both commercial and domestic wastes consisting of dried sludge and sewage.
all of them causes soil pollution.

Multiple choice chemistry for a pollution free nature properties of soil soil pollution and its effects soil and soil pollution

Herbicides causes which type of disorder?

  1. Metabolic

  2. Physiological

  3. Both a and b

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Now-a-days, herbicides are frequently used in the place of pesticides. these are also chemical compounds such as $NaClO _3, Na _3AsO _3$ etc., has become more frequent but they are also toxic to mammals.

Multiple choice chemistry for a pollution free nature properties of soil soil pollution and its effects soil and soil pollution

Which chemical compound is responsible for making soil infertile?

  1. Fertilizers

  2. Germicides

  3. Verbicides

  4. All of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Fertilizers are the chemical compound which is used in agricultural land to increase the fertility of soil. The use of fertilizers for long time makes the upper layer harder and renders the soil infertile.

Multiple choice chemistry for a pollution free nature properties of soil soil pollution and its effects soil and soil pollution

How soil erosion is a cause of soil pollution?

  1. By decreasing area of productive land.

  2. By increasing area of productive land.

  3. By decreasing area of land.

  4. By decreasing area of non-productive land.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Soil erosion is a phenomenon in which soil of an area eroded due to deforestation, over-grazing, unplanned irrigation, etc., decrease the fertility of soil.