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Test: Pollution Zones In River


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5 Questions MCQ Test Environmental Engineering | Test: Pollution Zones In River

Test: Pollution Zones In River for Civil Engineering (CE) 2023 is part of Environmental Engineering preparation. The Test: Pollution Zones In River questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Pollution Zones In River MCQs are made for Civil Engineering (CE) 2023 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Pollution Zones In River below.
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Test: Pollution Zones In River - Question 1

 The pollution zones in the river are divided into how many types?

Detailed Solution for Test: Pollution Zones In River - Question 1

Explanation: There are 4 types of pollution zones in the river, namely zone of degradation, zone of active decomposition, zone of recovery and zone of clear water.

Test: Pollution Zones In River - Question 2

 In which pollution zone of river, growth of algae reappear?

Detailed Solution for Test: Pollution Zones In River - Question 2

Explanation: The growth of algae reappear in the zone of recovery.The growth of fungi decreases.

Test: Pollution Zones In River - Question 3

 In which pollution zone of the river, the dissolved oxygen reduced to 0?

Detailed Solution for Test: Pollution Zones In River - Question 3

Explanation: The dissolved oxygen, reduced to 0 in the zone of active decomposition. The water is highly polluted in this zone.

Test: Pollution Zones In River - Question 4

 Which is the third zone of pollution in the river?

Detailed Solution for Test: Pollution Zones In River - Question 4

Explanation: The zone of recovery is the third zone of pollution in the river where river tries to recover the polluted water through the self purification process.

Test: Pollution Zones In River - Question 5

In which pollution zone of the river, water retains its original dissolved oxygen concentration?

Detailed Solution for Test: Pollution Zones In River - Question 5

Explanation: The water retains its original dissolved oxygen concentration in the zone of clean water. It has a clear appearance.

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