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1
The vegetation type characterized by (i) a large expanse of grassland with scattered trees and shrubs, (ii) lying between tropical rain forest and tropical steppes and deserts and (iii) flat-topped trees, is called
» Explain it
C
Tropical Savanna is grassland terrestrial biome located in semi arid to semi-humid climate regions of tropical latitudes. They are characterized by large grassland and flat-topped trees.
» Explain it
A
Biodiversity is richer in tropical areas because tropical environment is less reasonable, relatively more constant, get more amount of solar radiation. It remained relatively undisturbed in the part when glaciations occurred in temperate regions. 
3
The following questions consist of two statements, Statement I and statement II. 

Statement I Typical laterite soils in India are generally fertile.

Statement II Laterite soils generally experience leaching.
» Explain it
B
Laterite is a soil and rock type rich in iron and aluminium, and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by intensive and long-lasting weathering of the underlying parent rock. Tropical weathering (laterization) is a prolonged process of chemical weathering which produces a wide variety in the thickness, grade, chemistry and ore mineralogy of the resulting soils. The majority of the land area containing laterites is between the tropics of Cancer and Capricorn.
» Explain it
C
Soil colour is influenced by the amount of proteins present in the soil yellow or red soil indicates the presence of iron oxides. 
5
In soil, water that, is readily available to plant roots is
» Explain it
B
In smaller pores of the soil, water is held against the force of gravity by capillary forces and is called Capillary Water. This form of water is most important to plants and constitutes the only available source of water to plants.