Engineer & Medical

Environmental Issues question bank (Botany)

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Q1.

Select the correct statements regarding dissolved Oxygen and Biochemical oxygen demand. (A) BOD is inversely related to dissolved oxygen. (B) Low dissolved oxygen and high BOD lead to loss of aquatic life. (C) High BOD leads to high dissolved oxygen. (D) Both BOD and dissolved oxygen are indicator of health of a water body. (E) Both BOD and dissolved oxygen are affected by amount of organic matter in the water body. Choose the most appropriate answer from the options given below :

(A)

$(A), (B), (C), (D)$ only

(B)

$(B), (C), (D), (E)$ only

(C)

$(A), (B), (C), (E)$ only

(D)

$(A), (B), (D), (E)$ only

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Q2.

Match List-I with List-II
Choose the correct answer from the option given below:

(A)

$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{II}),(\mathrm{D})-(\mathrm{IV})$

(B)

$(\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{IV}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{III})$

(C)

$(\mathrm{A})-(\mathrm{IV}),(\mathrm{B})-(\mathrm{III}),(\mathrm{C})-(\mathrm{II}),(\mathrm{D})-(\mathrm{I})$

(D)

$(\mathrm{A})-(\mathrm{I}),(\mathrm{B})-(\mathrm{II}),(\mathrm{C})-(\mathrm{III}),(\mathrm{D})-(\mathrm{IV})$

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