Eras and Geological Time CDS Questions

CDS Physical Geography

Eras and Geological Time MCQ Questions


13.
The “Great Oxidation Event,” marked by the rise of atmospheric oxygen, occurred during which eon?
A.
Proterozoic Eon
B.
Archean Eon
C.
Hadean Eon
D.
Phanerozoic Eon
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ANSWER :
B. Archean Eon
14.
Which family is said to be the large family of small to medium-sized birds
A.
Rallidae
B.
Columbidae
C.
Cuculidae
D.
None of these
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ANSWER :
A. Rallidae
15.
Rock doves are comes under a family of ?
A.
Cuculidae
B.
Rallidae
C.
Columbidae
D.
Turnicidae
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ANSWER :
C. Columbidae
16.
Which bird is called as fresh water diving bird ?
A.
Cuckoos
B.
Dove
C.
penguin
D.
Grebes
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ANSWER :
D. Grebes
17.
The openings of the tracheal system in the exoskeleton are called ______
A.
Spiracles
B.
Skeletons
C.
Fluid
D.
Lymph
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ANSWER :
A. Spiracles
18.
Instead of having ‘blood’, insects transmit nutrients, hormones and cells through a fluid called ______.
A.
Antennae
B.
Wings
C.
Haemolymph
D.
Mouthparts
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ANSWER :
C. Haemolymph