Oxygen and Silicon together comprise approximately ______ %of the earth crust?
Oxygen and Silicon together comprise approximately ______ %of the earth crust?
A. 64 %
B. 79 %
C. 75 %
D. 73 %
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Which of the following is not a metamorphic rock?
Which of the following is not a metamorphic rock?A. Marble
B. Granite
C. Sand stone
D. both A & BIn Pakistan, The following igneous rocks are found over considerable areas:
In Pakistan, The following igneous rocks are found over considerable areas:A. Marl, gypsum
B. Slate, Shist
C. Dolomite shale, gneiss
D. None of the aboveThe soils in which the weathered material is taken away to other place by several agents are called__________?
The soils in which the weathered material is taken away to other place by several agents are called__________?A. Alluvial soil
B. Aeolian soil
C. Transported soil
D. None of thesePedogenic processes bring about changes in the parent materials in the form of _____________________, within the soil body (soil profile)?
Pedogenic processes bring about changes in the parent materials in the form of _____________________, within the soil body (soil profile)?A. Additions, losses
B. Transfers and transformations
C. both A and B
D. None of the aboveIn Pakistan, Indus plains are formed from ___________ parent material which was transported by Indus river and its tributaries from Himalayas?
In Pakistan, Indus plains are formed from ___________ parent material which was transported by Indus river and its tributaries from Himalayas?A. Till
B. Moraine
C. Colluvial
D. None of the aboveHow much percentage of soils of Pakistan are deficient in P______________________?
How much percentage of soils of Pakistan are deficient in P______________________?A. 60
C. 50-70
D. 80-90