Question

Which of the following types of ecosystem is expected in an area where evaporation exceeds precipitation, and mean annual rainfall is below $100$mm?

• A. Grassland
• B. Shrubby forest
• C. Desert
• D. Mangrove

Answer 1

The correct option is C Desert

Deserts have been variously classified as true deserts having less than $120$mm annual rainfall, or extreme deserts showing less that $70$mm $y{r}^{-1}$ rainfall. In desert biomes, evaporation from soil always exceeds rainfall by $7$ to $50$ times.