Tag: for a pollution free nature

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

Afforestation is necessary for:

  1. soil conservation

  2. soil erosion

  3. well control

  4. low humidity

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Afforestation is the process of planting trees, or sowing seeds, in a barren land devoid of any trees to create a forest. The benefits of this practice, which is called agroforestry, are:

  1. It provides a supply of timber, fruit, and fodder for cattle apart from crop production
  2. It prevents soil erosion and thus conserves soil.
  3. It enables better retention of water
  4. It shields crops from excessive wind and sun damage

In terms of the environmental benefits, planting trees is always beneficial whether it takes place in a barren land or is used as a method to regenerate a depleted forest. Trees help check atmospheric carbon dioxide; large scale afforestation can curb the problems caused due to burning of fossil fuels, industrialization and so forth.

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

Which type of rain can cause soil pollution?

  1. Acid rain

  2. Tropical rain

  3. Temperate rain

  4. All of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When the rain droplets gets mixed with nitrogen and sulfur oxide it causes acid rain. this acid rain when fall on earth react with soil because of chemicals present in acid rain, the fertility of particular area gets affected.

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

How industrial effluents effects soil pollution?

  1. By decreasing its fertility

  2. By decreasing its water absorbing capacity

  3. By increasing its fertility

  4. Both A and B

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The industrial effluents passing through the field add toxic substances to the soil and decrease the soil fertility and its water-absorbing capacity.


Hence the correct option is D.

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

Negative soil pollution is:

  1. reduction in soil productivity due to erosion and over use

  2. reduction in soil productivity due to addition of pesticides and industrial wastes

  3. converting fertile land into barren land by dumping ash, sludge and garbase

  4. none of the above

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Negative soil pollution occurs due to the overuse of soil & its erosion hence there will be a decrease in soil productivity. 

The other causes of negative soil pollution such as developmental activities, overgrazing and soil erosion.

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

Afforestation and reforestation is a measure mainly to control _________.

  1. soil pollution

  2. water pollution

  3. thermal pollution

  4. none of above

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Afforestation is the establishment of a forest or stand of trees in an area where there was no previous tree cover.
Reforestation is the reestablishment of forest cover, either naturally (by natural seeding, coppice, or root suckers) or artificially (by direct seeding or planting).

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

Which of the following properties of soil decreases due to deforestation?

  1. Nutrient content

  2. Fertility

  3. Texture

  4. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Deforestation is a major cause which leads to the change in soil properties. It affects the nutrient content (which cannot be replenished in the soil), texture and fertility of soil (due to erosion).