The soil quality is always deteriorated by:_________?

A. Erosion & pollution
B. Waterlogging & salinization
C. Nutrient mining
D. All of these

Submitted by: Shafiq Rehman

Related Mcqs:

Soil additive which stabilizes the soil, improves resistance to erosion, increases to permeability to air & water, improves texture, eases cultivation or otherwise improves soil quality:
A. Soil amendment
B. Soil conditioner
C. Both a & b
D. None of the above
Submitted by: Shafiq Rehman
Any material such as straw, sawdust, leaves, plastic films, & loose soil that is spread upon the surface of the soil to protect the soil & plant roots from the effects of raindrops, soil crusting, freezing or evaporation:
A. Mull
B. Mulch
C. Mycorrhizae
D. Muck
Submitted by: Shafiq Rehman
Organic P content in soil, by ignition method is estimated by igniting the soil at ____________________?
A. 250ºC
B. 1000ºC
C. 550ºC
D. 1250ºC
Being a soil scientist, do you know which is the popular book of soil science of Nyle.C.brady, 14th edition available in markets:
A. Fundamentals of soil
B. Essenttials of soil sciences
C. The nature and properties of soil
D. The mechanics of soil
Submitted by: Shafiq Rehman
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 above
Submitted by: Shafiq Rehman
The soil samples are dried at _______________, for gravimetric soil analysis?
A. 110 ⁰C
B. 120 ⁰C
C. both A and B
D. 105 ⁰C
Submitted by: Shafiq Rehman
The availability of essential nutrients from soil to the plants is controlled by the ________ properties of soil:
A. Physical
B. chemical
C. Biological
D. both A & B
Submitted by: Shafiq Rehman
__________________ systems play a crucial role in increasing soil organic C storage and reducing net emissions of greenhouse gases in addition to soil erosion control:
A. Engineering
B. Agroforestry
C. Cultivating
D. All of the above
Submitted by: Shafiq Rehman
Any tillage and planting system that maintains at least 30% of the soil surface covered by residue after planting for the purpose of reducing soil erosion by water:
A. Deep Tillage
B. Conservation Tillage
C. Both a & b
D. None of these
Submitted by: Shafiq Rehman
Nitrogen & sulphur dioxide liberate from motor vehicles & industries. Nitrogen & Sulphur gases dissolve in the water vapour of atmosphere & form nitric & sulphuric acid. This rain water falls on soil as__________ & contaminates soil also:
A. Acid rain
B. Neutral rain
C. Both A & B
D. None of the above
Submitted by: Shafiq Rehman