Rocks formed from molten magma are called__________________?
A. Sedimentary rocks
B. Igneous rocks
C. Alluvial rocks
D. All the above
Material deposited by the wind is called____________________?
Material deposited by the wind is called____________________?
A. Regolith
B. Colluvial
C. Alluvium
D. Eolian
The wearing away of the land surface by wind, water, ice or other geological agents is called____________________?
The wearing away of the land surface by wind, water, ice or other geological agents is called____________________?
A. Seepage
B. Soil erosion
C. Soil contamination
D. All the above
The science of growing terrestrial plants in an aerated solution is known as___________________?
The science of growing terrestrial plants in an aerated solution is known as___________________?
A. Nutrient film technique
B. Hydrology
C. Hydrants
D. Hydroponics
Electrical conductivity of saturated paste is written as____________________?
Electrical conductivity of saturated paste is written as____________________?
A. ECP
B. ECe
C. ECs
D. Ecw
Na2CO3 salts is___________________?
Na2CO3 salts is___________________?
A. Neutral
B. Alkaline
C. Acidic
D. None of the above
Accumulation of soluble salts root zone is known as____________________?
Accumulation of soluble salts root zone is known as____________________?
A. Desodication
B. Sodication
C. Degradation
D. Salininzation
The atmospheric layer lies closest to the earth surface is known as___________________?
The atmospheric layer lies closest to the earth surface is known as___________________?
A. Mesosphere
B. Thermosphere
C. Troposphere
D. Stratosphere
Algal photosynthesis increases pH of water and releases___________________?
Algal photosynthesis increases pH of water and releases___________________?
A. O2
B. CO2
C. SO3
D. All the above
Primary air pollution is____________________?
Primary air pollution is____________________?
A. SO
B. SO3
C. SO2
D. None of the above