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Civil Engineering (CE) Exam  >  Civil Engineering (CE) Tests  >  Environmental Engineering  >  Test: Biological Zones In Lake - Civil Engineering (CE) MCQ

Test: Biological Zones In Lake - Civil Engineering (CE) MCQ


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10 Questions MCQ Test Environmental Engineering - Test: Biological Zones In Lake

Test: Biological Zones In Lake for Civil Engineering (CE) 2024 is part of Environmental Engineering preparation. The Test: Biological Zones In Lake questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Biological Zones In Lake MCQs are made for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Biological Zones In Lake below.
Solutions of Test: Biological Zones In Lake questions in English are available as part of our Environmental Engineering for Civil Engineering (CE) & Test: Biological Zones In Lake solutions in Hindi for Environmental Engineering course. Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free. Attempt Test: Biological Zones In Lake | 10 questions in 25 minutes | Mock test for Civil Engineering (CE) preparation | Free important questions MCQ to study Environmental Engineering for Civil Engineering (CE) Exam | Download free PDF with solutions
Test: Biological Zones In Lake - Question 1
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 ______ zone lies between Euphotic and Benthic zone.

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Explanation: Littoral zone lies between Euphotic and Benthic zone. The growth of aquatic plants takes place in this zone.

Test: Biological Zones In Lake - Question 2
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The uppermost zone in lakes is called as

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Explanation: The uppermost zone in lakes is called as Euphotic zone where sunlight passes through the lake and growth of plants takes place.

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Test: Biological Zones In Lake - Question 3
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 _______ is the process of overgrowth of plants and algae in lakes.

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Explanation: The process of overgrowth of plants and algae in lakes is called Eutrophication. It decreases the oxygen concentration of water.

Test: Biological Zones In Lake - Question 4
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 Which of the following promotes eutrophication of lakes?
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Explanation: Phosphorous promotes the eutrophication of lakes as it is helpful for the growth of plants in lakes. It can easily reach the lakes through industrial water.

Test: Biological Zones In Lake - Question 5
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 In which zone, decomposition of the dead organism takes place?
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Explanation: In Benthic zone, the dead organism settled down where their decomposition takes place by the bacteria.

Test: Biological Zones In Lake - Question 6
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Which one of the following lakes has minimum productivity?
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Explanation: Oligotrophic lake has a minimum productivity due to the presence of low phosphorous, nitrogen and other nutrients in the lake.

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________ is the process of acceleration of eutrophication due to increased phosphorous content in lakes.
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Explanation: Cultural eutrophication is the acceleration of eutrophication due to excessive nutrients in the water. It results in the death of aquatic plants and animals.

Test: Biological Zones In Lake - Question 8
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Which type of pollution is a Cultural eutrophication?
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Explanation: Cultural eutrophication is a water pollution due to the presence of excessive nutrients from house waste, industries, etc. that pollutes the lake, decreases the oxygen level and destroys the aquatic ecosystem.

Test: Biological Zones In Lake - Question 9
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 The lakes are classified into how many types on the basis of productivity?
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Explanation: The lakes are classified into 4 types on the basis of productivity, namely Senescent, Oligotrophic, Eutrophic and Mesotrophic.

Test: Biological Zones In Lake - Question 10
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The depth of Euphotic zone is measured by
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Explanation: The depth of Euphotic zone is measured by Secchi disk where it is put in the lake and the depth at which the disk becomes invisible is taken as the depth of Euphotic zone.

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