Tag: sources of waste

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

Soil pollutants affecting food chains and food webs by killing microorganisms are?

  1. Chemical fertilizers

  2. Agriculture wastes

  3. Pesticides

  4. Pathogens
  5. $NO _2$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Chemical fertilizers are synthetic substances that provide the necessary nutrients for healthy plant growth and development. But the overfertilization may cause soil pollution which can then kill plants and other microorganisms and disturb the food chains.
So the correct answer is 'Chemical fertilizers'.
Multiple choice evs - i waste and its management sources of waste protecting our environment rules are for everyone

What is the main reason why the soil becomes contaminated?

  1. Organic methods of farming

  2. Agriculture farming

  3. The presence of man made waste

  4. Afforestation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Soil contamination is largely driven by the accumulation of non-biodegradable or toxic materials introduced by human activity, such as industrial waste, plastics, and chemicals.

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

Which of the following causes soil pollution?

  1. Oil spill

  2. Fertilizers

  3. Acid rain

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
The following are the main mechanisms that generate soil pollution:
A. Antropogenic – through human activity including:
1. Accidental spills and leaks during storage, transport or use of chemicals (e.g., leaks and spills of gasoline and diesel at gas stations);
2. Foundry activities and manufacturing processes that involve furnaces or other processes resulting in possible dispersion of contaminants in environment;
3. Mining activities involving crushing and processing of raw materials (such as mining activity);
4. Construction activities
5. Agricultural activities involving the spread of herbicides/pesticides/insecticides and fertilizers;
6. Transportation activities (e.g., vehicle emissions)
7. Dumping of chemicals (accidental or intended – such as illegal dumping);
Storage of wastes in landfills (which may leak to groundwater or generate polluted vapours)
8. Cracked paint chips falling from building walls, especially lead-based paint;
B. Natural causes:
1. Natural accumulation of compounds in soil due to imbalances between atmospheric deposition and leaching away with precipitation water (e.g., concentration and accumulation of perchlorate in soils in arid environments).
2. Natural production in soil under certain environmental conditions (e.g., natural formation of perchlorate in soil in the presence of a chlorine source, metallic object and using the energy generated by a thunderstorm).
3. Leaks from sewer lines into subsurface (e.g., adding chlorine which could generate trihalometanes such as chloroform).
Multiple choice business organisation and correspondence waste and its management sources of waste protecting our environment rules are for everyone

Acid rain cause soil pollution by

  1. Changing the chemical nature of soil

  2. Altering the fertility of soil

  3. Increasing the mineral content of the soil

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Acid rain introduces acidic compounds into the soil, which alters its chemical balance (pH) and leaches essential nutrients, thereby negatively affecting soil fertility.

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

The abiotic factors which cause soil pollution is

  1. Insect

  2. Deforestation

  3. Soil erosion

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Abiotic factors are non-living chemical and physical parts of the environment. Deforestation leads to loss of cover, and soil erosion is the physical removal of topsoil; both are abiotic processes that contribute to soil degradation.

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

Which of the following has an adverse effect on the soil?

  1. Increase in microbial content of the soil

  2. Increase in biodegradable waste

  3. Increase in agricultural waste

  4. Both A and B
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The harmful change in the colour, texture, and quality of soil due to addition and removal of any material is called soil pollution. Soil pollution reduces the productivity of the soil. There are several pollutants that cause soil pollution. For example, agricultural wastes, radioactive wastes and discarded materials of hospitals etc. The agricultural waste includes pesticides, insecticides, fertilizers, weedicides etc. These are the chemicals that are involved in changing the pH of the soil. For example, repeated use of fertilizers makes the soil acidic which in turn decreases the productivity of the soil. So, the correct option is C.