World Geography MCQs

182. The term ‘Abyssal’ refers to

A. inner most part of the earth
B. organism found in the shallow water zone of the seas
C. deeper parts of the oceans
D. None of the above
✅ The correct answer is option C.
‘Abyssal’ refers to of or relating to the bottom waters of the ocean depths.

183. The term ‘flora’ in the context of natural vegetation refers to

A. assemblage of plant species living in association with each other in a given environmental frame
B. plants of a particular region or period, listed by species and considered as a group
C. a large tract covered by trees and shrubs and its administration for assessing economic benefits
D. role played by species of animals in the maintenance of ecological balance
✅ The correct answer is option B.
The term ‘flora’ in the context of natural vegetation refers to plants of a particular region or period, listed by species and considered as a group.

185. The major cause of species extinction is

A. agricultural activities
B. extraction (including mining, fishing, logging)
C. development (human settlements, industry)
D. habitat loss and degradation
✅ The correct answer is option D.
Species endangerment and extinction have three major anthropogenic causes—overhunting or overharvesting; introduction of nonnative species, including the spread of disease; and habitat degradation or loss. All three causes probably were factors in prehistoric as well as modern times.
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