Prolonged liberal irrigation of agricultural fields causes:

D. Both salinity and waterlogging

Everyday Science · Environment, Weather & Ecology · page 3 of 3

Everyday Science misc (147) MCQs with Answers

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21.
Soil pollution is primarily due to:
Correct Answer: A. Acid rain
One-liner
Soil pollution is primarily due to acid rain, which introduces harmful chemicals into the soil and alters its composition.
22.
Prolonged liberal irrigation of agricultural fields causes:
Correct Answer: D. Both salinity and waterlogging
One-liner
Prolonged liberal irrigation of agricultural fields causes both salinity and waterlogging.
23.
The process of reducing the concentration of pollutants in water to safe levels is called?
Correct Answer: B. Water treatment
One-liner
The process of reducing the concentration of pollutants in water to safe levels is called water treatment.
24.
The most dangerous type of pollution is ?
Correct Answer: B. Air Pollution
One-liner
The most dangerous type of pollution is Air Pollution because it directly affects the respiratory system and can spread rapidly across large areas, causing widespread health and environmental damage.
25.
The process of removing salts and other impurities from seawater to make it suitable for drinking and irrigation is called?
Correct Answer: A. Water Desalination
One-liner
The process of removing salts and impurities from seawater to produce fresh water is called Water Desalination.
26.
In the water treatment plant different materials are used as filters. The most common been used is/are _?
Correct Answer: C. Sand and gravel
One-liner
The most common filter materials used in water treatment plants are sand and gravel.