Question

How is environmental pollution caused?

Answer 1

Environmental pollution:

When there is an undesirable change in the surrounding that has harmful effects on plants and animals, it leads to environmental pollution.

• A pollutant is a substance that causes pollution.
• We can have pollutants in liquid, solid or gaseous form.
• A substance becomes a pollutant when its concentration is greater than the natural abundance and this increase in concentration is either due to human activities or natural phenomenon.
• Some pollutants are dumped into the soil by human beings. This leads to air, water and soil pollution respectively. If the soil is polluted, the useful microorganisms in it will die and the fertility of soil will be lost. The production of crops will decrease.
• Similarly, water is polluted then we have to purify it before drinking. Purification needs resources.
• Lastly, if air is polluted, respiration will become an issue and survival of life will be under threat. Air pollution leads to many respiratory diseases and harms the human body.