What will be the environmental consequence of $25\%$ increase of $CO_2$ level in our atmosphere
Direct pollution
Death of all plants
Death of all animals
Green-house effect
It’s obvious.
Exotic species are also called
$I.$ introduced species
$II.$ alien species
$III.$ non-indigenous species
$IV.$ non-native species
Choose the correct combination
Ephemerals are xerophytes that are
The $ pH$ of a fertile soil is usually around
At which lattitude, heat gain through insolation approximately equals heat loss through terrestrial radiation
The possible beneficial affect of grazing animals is the
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