In a soil sample, the relative amouunts of the different ...
In a soil sample, the relative amouunts of the different soil particles can best be determined by the process of
filtration
centrifugation
precipitation
sedimentation
Correct answer is D
No explanation has been provided for this answer.
Which of the following relationships does not involve two organisms? ...
Water vapour is lost in plants during transpiration through ...
The following are useful effect of micro-organisms except ...
In an ecosystem, the organism that changes light energy into stored chemical energy is the ...
Digested food is carried from small intestine to the liver by the ...
A non-renewable alternative source of energy is ...
The structure that produces the energy required by the cell is labelled ...