How is desert formed ?

Answer 1

The desert designation is given to a location with a very low average precipitation. Much of Antarctica is classified as a desert for that very reason, despite the fact that there is LOTS of frozen water everywhere. We have to assume that you mean a sand desert like the Sahara in N. Africa. There are so many factors that they cannot all be included. Many of these great deserts have petrified forests in them that indicate that they were lush forest many thousand of years ago, long before global warming or the misutilization of land by humans. What caused that? We can only guess that it was climate change, but what caused the climate change?? You can never get to the root of the problem. We now study desertification and know some of the current causes which include human influenced environmental changes, poor land management, poor water management.

Answer 2

The desert environments of the present are, in geologic terms, relatively recent in origin. They represent the most extreme result of the progressive cooling and consequent aridification of global climates during the Cenozoic Era (66.4 million years ago to the present), which also led to the development of savannas and scrublands in the less arid regions near the tropical and temperate margins of the developing deserts.

Answer 3

When weather patterns change, and all the plants die for lack of water, and all the animals leave for lack of plants to eat, you are left with desert.

By definition desert is lands where only a very small amount of rain falls per year (I think it's average 2 inches but don't quote me on that).

Answer 4

When no rain occurs droughts go on if it goes on for too clon consider the land a desert

Answer 5

Deserts are the symbols of mankinds failures and are the fruit of indiscriminate deforestation and radical overuse of natural resources.