The tree sends down roots from its branches to the soil is know as:_______?
The tree sends down roots from its branches to the soil is know as:_______?
A. Oak
B. e
C. Banyan
D. Palm
Soil Science
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Which mulch reduce soil temperature?
Which mulch reduce soil temperature?A. Polythene
B. White polythene
C. Black polythene
D. Both B&C -
Humic acid is soluble in____________________?
Humic acid is soluble in____________________?A. Acid
B. Alkali
C. Both a & b
D. None of the above -
In flood rice, snail feed on bacteria called__________________?
In flood rice, snail feed on bacteria called__________________?A. Helix
B. Limnea
C. Azolla
D. None of the above -
Which bacteria convert nitrite to nitrate___________________?
Which bacteria convert nitrite to nitrate___________________?A. Frankia
B. Nitrobacter
C. Pseudomonas
D. None of the above -
Examples of macrobiota are______________________?
Examples of macrobiota are______________________?A. Enchytrids
B. Fungus
C. Bacteria
D. Plants -
Part of soil which is in contact with root surface is called___________________?
Part of soil which is in contact with root surface is called___________________?A. Rhizoshpere
B. Lithoshpere
C. Atmoshpere
D. None of the above -
Point of zero change means____________________?
Point of zero change means____________________?A. All the covalent bonds
B. Zero charge at surface
C. All are ionic bond
D. None of the above -
The most abundant metal in the earth’s crust and toxic to plants in low concentration is____________________?
The most abundant metal in the earth’s crust and toxic to plants in low concentration is____________________?A. Mo
B. Al
C. Fe
D. All the above -
The salinity can be reduced by the application of___________________?
The salinity can be reduced by the application of___________________?A. Lime
B. Sulphuric acid
C. Urea
D. All the above