DPPGE: 13 March

1. Consider the following  statements:

1. In the tropical rainforest of Brazil, the average diurnal  range  of  temperature  is  much  greater than the average annual range  of temperature.
2. In  the  humid  subtropical  climate  of  Kyushu island of Japan, the rainfall for the year almost totals that  of the rainfall in tropical rainforest.

Which of the statements given above is/are correct ?
a. 1  only                        b.  2  only
c. Both 1 and 2             d.  Neither  1  nor  2

2. Which of following statement is true about the Ecotone?
a.    It is meeting place of two different eco systems
b.    It is meeting place of two same eco systems
c.    Density of species is very low here
d.    All of  the above.

3. Consider following statement about the estuary
I)    Estuary is place where the river fresh waster meets with ocean water
II)    This area is highly productive
III)    This area is highly unproductive
IV)    All of the above

Which of above the statements is/are true?
a.    I) only
b.    II) only
c.    I) and II)
d.    III)

5. Assertion (A) : After carbon, nitrogen is the most abundant element in the biosphere.

Reason (R) : Nitrogen is essential for synthesizing the living matter in nature.

6. Assertion (A) : Vertisols are most extensive in Australia, India and Sudan.

Reason (R) : The clay-producing materials are available in mesothermal or tropical climates with periodic dry and wet seasons.

8. Assertion (A) : Black cotton soils are ideal for dry fanning

Reason (R) : Black cotton soils are fine grained.

9. Assertion (A): Hurricanes do not originate in South Atlantic Ocean and South-Eastern Pacific ocean

Reason (R): In South Atlantic and South Eastern Pacific oceans, the intertropical convergence zone seldom occurs.

10. Assertion (A): Greenland and Antarctica regions are permanent centres of thermal anticyclones.

Reason (R): The high pressure is the common feature of Greenland and Antarctica because of the higher latitudes and free radiation.