Threats of sand dunes

Answer 1

In the United States, there are three basic threats to deserts: Water rights, over grazing, and motor vehicles.

Long ago water rights were invented. They gave cities such as LasAngeles, the right to take water out of the desert and use it for municipal purposes. That made a dry area even dryer. That has led to increased erosion. In the natural order, water produced in a desert, remains in the desert, adding moisture.

Even a desert has some plant growth. Cows, sheep, and other animals can graze on those plants. In the natural order of things, such animals migrate between summer and winter pasture. In man made order of things, pieces of property are fenced. Cows do not leave a piece of property until every blade of grass has been grazed away and desert plants can not recover.

Motor vehicles and other off road vehicles are driving through deserts at high speed. They are tearing up dunes and anything else. They are doing tremendous damage to the environment. Desert plants have roots just under the surface to catch rainwater. When a motor vehicle drives over those roots, it kills the plant even though it misses the plant. By driving even close to a desert plant, a motor vehicle kills a desert plant.

Answer 2

there are many threats but some are:

* horses * walkers * the weather ie storms * bbq's there are many threats but some are:

* horses * walkers * the weather ie storms * bbq's