The salinity in sea water in parts per thousand $(ppt)$ ranges between

Which biological factor is responsible for poor vegetation in deserts?

Find out the correct match with respect to salinity (in parts per thousand).

Organisms that can tolerate only a narrow range of salt concentrations are called . . . . . . .

Write a short note on:
$(a)$ Adaptations of desert plants and animals
$(b)$ Adaptations of plants to water scarcity
$(c)$ Behavioural adaptations in animals
$(d)$ Importance of light to plants
$(e)$ Effect of temperature or water scarcity and the adaptations of animals.

The shade-loving plants are called