Exercise 8

Question 36 :

The process of destruction or dying of fronts is called


A). fromtogenesis
B). frontolysis
C). both (a) and (b)
D). None of the above
Answer : Answer: Option B

Question 37 :

The Palaeozoic era starts at ____ million years ago and ends at ____ million years ago.


A). 500, 100
B). 570, 225
C). 470, 150
D). 470, 225
Answer : Answer: Option B

Question 38 :

The reaction is carbonate and bicarbonate ions with mineral is called


A). hydrolysis
B). carbonation
C). oxidation
D). solution
Answer : Answer: Option B

Question 39 :

The plants grown in equatorial regions include


A). wheat, barley, maize
B). evergreen dense forests, rubber trees, groundnuts
C). groundnuts, soyabeens, potatoes
D). evergreen coniferous forests, oats, cocoa
Answer : Answer: Option B

Question 40 :

The process that may cause physical weathering or mechanical rupture are


A). abrasion, crystallization, pressure release
B). abrasion, oxidation, hydrolysis
C). crystallization, carbonation, thermal insolation
D). None of the above
Answer : Answer: Option A