If an agricultural field is liberally irrigated for a prolonged period of time, it is likely to face problem of
Metal toxicity
Alkalinity
Acidity
Salinity
$A$ : Successional process starts only in those areas, where no living organisms ever existed.
$R$ : These areas are not supported by physical environmental conditions.
Which one of the following is not a functional unit of an ecosystem?
Breakdown of detritus into smaller particles by earthworm is a process called
Plant succession is a ............. process
A biome consist of organisms of various trophic levels