HOSTILE ENVIRONMENT

Forest provide an abundant supply of plant and animal food.Even

grasslands have a great variety of food sources.Many of these areas,

to have soil that is suitable for forming.Desert and tundra regions

offer for less food,both in variety and in quantity.This is why these

regions are among the least densely populated areas of the world.

Grains for example,provide an important food for much of the worlds

people,yet,grains,either,wild or cultivated,cannot exist in the tundra.

The tundra is too cold ,and its growing season is too short.Deserts are

warm enough water for irrigation can people who live in the desert grow

wheat grow,wheat rice,or corn.