Which of the following statements regarding laterite soils of India are correct?
1 . They are generally red in colour.
2. They are rich In nitrogen and potash.
3. Tiley are well-developed in Rajasthan and UP.
4. Tapioca and cashew nuts grow well on these soils.

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The annual range of temperature in the interior of the continents is high as compared to coastal areas. What is / are the reason / reasons?
1. Thermal difference between land and water
2. Variation in altitude between continents and oceans
3. Presence of strong winds in the interior
4. Heavy rains in the interior as compared to coasts

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Which of the following is/are unique characteristic/characteristics of equatorial forests?

1. Presence of tall, closely set trees with crowns forming a continuous canopy 
2. Coexistence of a large number of species 
3. Presence of numerous varieties of epiphytes 

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Contour bunding is a method of soil conservation used in

Consider the following pairs:
1. Nokrek Bio-
sphere Reserve : Garo Hills
2. Logtak (Loktak)
Lake : Barail Range
3. Namdapha
National Park : Dafla Hills
Which of the above pairs is/are correctly matched?

On the planet earth, most of the freshwater exists as ice caps and glaciers. Out of the remaining freshwater, the largest proportion