Exercise 9

Question 21 :

The type of igneous rock that form from magma is a function of


A). the chemical composition of the magma
B). temperature of solidification
C). the rate of cooling, which influences the crystallisation process
D). All of the above
Answer : Option D

Question 22 :

The slow down slope movement of soil and sediment because of frost heaving and thawing is called


A). solifluction
B). gelifluction
C). frost creep
D). rockfall
Answer : Option C

Question 23 :

The transverse, longitudinal and surface waves in an earthquake originate from


A). the epicentre within the body of the earth
B). the focus on the surface of the earth
C). the focus within the body of the earth
D). the epicentre on the body of the earth
Answer : Option C

Question 24 :

The smallest country of the world is


A). Russia
B). Vatican city
C). Brazil
D). Canada
Answer : Option B

Question 25 :

The smallest annual temperature range occurs in the


A). equatorial tropical climate zone
B). subtropical climate zone
C). temperate climate zone
D). polar climate zone
Answer : Option A