Why do you think there are no trees in the desert?

Answer 1

Well, a desert is a biome that receives very little rain and is often associated with temperature fluctuation in their day and night cycles. The lack of minerals in the ground, the lack of water, and the extremes of the temperatures make tree life (as well as most other life) impossible.

Clarification:

Some trees do live in the desert. In North America you will find mesquite and palo verde trees along with a few other species living in the deserts.

Answer 2

There are a number of species of grass that survive in the desert. They usually grow in isolated clumps as there is insufficient water to support a dense area of grass. In the desert grasses usually are not so noticeable. Yet grasses are surprisingly numerous and play important ecological roles in desert communities.

Answer 3

Because it is too hot there and there is not enough water to sustain a forest.

Answer 4

In the desert, it is too dry form most forms of vegetation, including grass, to survive.