What is a soil horizon?
What is a soil horizon?
A. Soil texture
B. Soil structure
C. Layers of soil
D. All of these
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The planned development, distribution and use water resources:
The planned development, distribution and use water resources:A. Water distribution
B. Water management
C. both A & B
D. None of the aboveDecomposition of the organic matter in submerged soil is carried out by?
Decomposition of the organic matter in submerged soil is carried out by?A. Actinomycetes
B. Fungi
C. Algae
D. None of the aboveWhich silica mineral is present in soil in abundant quantity____________________?
Which silica mineral is present in soil in abundant quantity____________________?A. Quartz
B. Smectite
C. Gypsum
D. All 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. 80-90Oxygen 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 %Pakistan being predominantly an arid and semiarid country, In addition to agricultural productivity losses and increasing poverty, desertification results in significant reductions in _________?
Pakistan being predominantly an arid and semiarid country, In addition to agricultural productivity losses and increasing poverty, desertification results in significant reductions in _________?A. Contributing to global warming
B. Carbon storage in soils
C. loss of biodiversity
D. All of theseInternational Day for Biological Diversity – 22 May The United Nations has proclaimed May 22 The International Day for Biological Diversity (IDB) to increase understanding and awareness of biodiversity issues.