World geography

increase in area under wheat

increase in yield per hectare

increase in demand for wheat

increase in prices

assemblage of plant species living in association with each other in a given environmental frame

plants of a particular region or period, listed by species and considered as a group

a large tract covered by trees and shrubs and its administration for assessing economic benefits

role played by species of animals in the maintenance of ecological balance

clayey loam

rich, muddy and saturated with water

deep, loamy, well drained

humus, rich in Fe and potash

Andaman islands

Nicobar islands

both (a) and (b)

None of the above

Africa

Asia

Australia

Antarctica

the Pliocene epoch

the Pleistocen epoch

the Miocene epoch

the Oligocene epoch

Laurissa in the north and Godwanaland in the south

Laurissa in the south and Godwanaland in the north

Laurissa in the east and Godwanaland in the west

Laurissa in the west and Godwanaland in the east

rock cycle

Bowens reaction series

both are similar terms

None of the above

Continental shelf

Continental Slope

both (a) and (b)

None of the above

unweathered bedrock

weathered parent material

plant litter at various levels of decomposition

None of the above