This chapter is currently out of syllabus
1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

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), (E) only
B
(A), (B), (D), (E) only
C
(A), (B), (C), (D) only
D
(B), (C), (D), (E) only
2
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

The thickness of ozone in a column of air in the atmosphere is measured in terms of :

A
Decibels
B
Decameter
C
Kilobase
D
Dobson units
3
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

Which of the following statements is correct?

A
Biomagnification refers to increase in concentration of the toxicant at successive trophic levels.
B
Presence of large amount of nutrients in water restricts ‘Algal Bloom’
C
Algal Bloom decreases fish mortality
D
Eutrophication refers to increase in domestic sewage and waste water in lakes.
4
NEET 2023
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

Given below are two statements:

Statement I: Electrostatic precipitator is most widely used in thermal power plant.

Statement II : Electrostatic precipitator in thermal power plant removes ionising radiations.

In the light of the above statements, choose the most appropriate answer from the options given below:

A
Both Statement I and Statement II are incorrect.
B
Statement I is correct but Statement II is incorrect.
C
Statement I is incorrect but Statement II is correct.
D
Both Statement I and Statement II are correct.
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