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lisabon 2012 [21]
3 years ago
8

Question 6(Multiple Choice Worth 2 points)

Biology
2 answers:
Scilla [17]3 years ago
5 0

Spraying crop fields with pesticides is the common source of groundwater pollution.

Explanation:

Groundwater is naturally found in aquifers or geological water structures which stores water deep in the ground.

The most common contaminant of groundwater is spillage and seepage of excessive chemicals from industries and agriculture.

Agriculture which is done in large scale in many parts of the world implies the use of a large number of chemicals in the form of pesticides, weedicides, fertilizers, growth promoters etc. these are either sprayed as foliage sprays or added to the ground directly for the roots to absorb.

The excess chemicals applied to enter the ground surface and mix with the surface water and enter into the ground and mix with the groundwater. Thus the entire natural aquifer in that area becomes easily contaminated with chemicals.

Reika [66]3 years ago
3 0

The common source of groundwater pollution is done by spraying crop fields with pesticides.

Answer: Option C

<u>Explanation:</u>

The ground water pollution is the mixing up of pollutant in the water which lies below the ground and is potable in nature. This pollution has the commonest source of pollutant by the pesticides.

The crop fields when sprayed for pests with pesticides in order to kill the pests on crop, contaminates the crop as well as the ground at the same time. These are its disadvantages.

The ground being contaminated on ploughing or by leaching gets the pollutant into the water table. Plant on the other hand on decaying leaves the pesticide into the ground which in turns goes into the under ground water.

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