Carbon constitutes ______ of dry weight of organism and ______ percentage is dissolved in oceans out of total global carbon.
$49\;\%, 71\;\%$
$71\;\%, 49\;\%$
$49\;\%, 49\;\%$
$71\;\%, 71\;\%$
Plains with snow, ice, and frozen soil for most of the year are found in
Desert biome does not support much vegetation as it lacks
Atmospheric input is negligible in
Which one of the following ecosystems is more productive in terms of carbon dioxide fixation
Ecological succession on sand is