1832ForestryMedium
Most harmful heavy metals causing water pollution:
APb, Hg, Cr, Cd
BZn,Mo,Mg,Ag
CP,Mn,B,Mg
DN,K,Mo
Correct answer
A. Pb, Hg, Cr, Cd
Explanation
The correct answer is Pb, Hg, Cr, Cd.
Correct answer
A. Pb, Hg, Cr, Cd
Explanation
The correct answer is Pb, Hg, Cr, Cd.
When a soil has been thoroughly wetted and then allowed to drain until capillary movement of the water has stopped, the water content of the soil will give an estimate of it’s:
Biota means:
Which of the following are plants of one group?
Tending operations is / are:
Apiculture is
Thermal insulation, leading to greater deposition of dew. In addition organic mulches also contribute to: