Deciduous forests are mainly found in region where annual precipitation ranges between
$50$ to $75$ cm
$75$ to $150$ cm
$150 $ to $ 200$ cm
Above $200 $ cm
Which ecosystem does not show variations dependent upon geographic location and rainfall
Most important determinant of marine ecosystem is
Secondary succession occurs on
Global water cycle involves
$A$ : Niche become general and broader during biotic succession.
$R$ : Species diversity increases but organic matter is decreased.