Every free action is produced by the concurrence of two causes; one moral, i. When I walk towards an object, it is necessary first that I should will to go there, and, in the second place, that my feet should carry me.
Although few animals and plants are adapted to the extremely dry desert life, the desert is a vital biome. The desert is important because it covers about a fifth of the earth's surface!
There are both hot and cold deserts. Antarctica is the largest desert in the world, while the Sahara in Africa is the largest of the hot deserts. Another type of desert is the coastal desert, for example, the Atacama Desert in Chile of South America.
And then there are cold deserts. That sounds pretty silly! If deserts are supposed to be hot, how can there possibly be a cold desert? Well these deserts are in places like Antarctica and Greenland where vegetation is sparce, just like the more commonly known hot, dry deserts.
Weather is not the same in all deserts. The seasons in hot and dry deserts are usually very hot during the summer and warm during the rest of the year.
During winter these deserts get little rainfall. Rain is often light, or in short concentrated bursts. Most of the time evaporation rates are faster than rainfall rates.
Sometimes the rain evaporates before even hitting the ground. This is the reason for the dry characteristic of this type of desert. Coastal deserts are in moderately cool to warm areas. Coastal deserts usually have cool winters followed by fairly long, warm summers. Average rainfall is usually 3 - 5 inches 8 - 13 cm.
The Atacama is the Earth's driest desert. In the Atacama 1 millimeter or more of rain falls every years. Cold deserts have short, moist and moderately warm summers, and long cold winters like one could expect in Antarctica.
Deserts plants have many adaptations to survive in such a dry environment. They are good at storing and finding water. Some plants have seeds that can stay dormant in the sand for a long time, until there is enough rain for them to grow.
In hot deserts, you'll often find Cacti.
Cacti are great at storing water. With their waxy coating, water can't escape and their spines protect them from being desert dinner. Their roots are shallow, and widely spread so that any rain can be absorbed immediately!
Some other plants you might find in the hot desert are creosote bush, sagebrush, and ocotillo. Coastal deserts house a variety of plants.
These plants must adapt to minimal rainfall by having extensive root systems that come up to the surface to absorb any possible rainfall, and go far down to absorb any water saturated in the ground.
These plants also have very thick leaves that can absorb and store water whenever it is available. The plants that live in coastal deserts include salt bush, rice grass, black sage and chrysothamnus. Plants can even live in cold deserts, but you won't find as many here as in other types of deserts.
Plants in cold deserts include algae, grasses, and plants with spiny thin leaves. Usually these plants grow only in the summer. Deserts are a very important biome.A food desert is an area, especially one with low-income residents, that has limited access to affordable and nutritious food.
In contrast, an area with supermarkets or vegetable shops is a food oasis. The designation considers the type and quality of food available to the population, in addition to the number, nature, and size of food stores that are accessible.
So, such people live in deserts are called desert peoples. E.g.-Aborigines of Australia, Bedouins in the Syrian Desert and also, Nomadic Mongols of the Gobi Desert. Where do desert peoples live in a desert? People who live in deserts usually live near a source of . Thus at Venice the College, even in the absence of the Doge, is called "Most Serene Prince." The Palatine of Posen, father of the King of Poland, Duke of Lorraine.
Most people who do live in deserts are nomadic, following the water. Cities that do exist in the desert are often on the coast. Australia, the Middle East, North Africa you'll see the river valleys are the only built up areas with the occasional oasis town like Alice Springs or Hohhot.
Food deserts can be described as geographic areas where residents’ access to affordable, healthy food options (especially fresh fruits and vegetables) is restricted or nonexistent due to the absence of grocery stores within convenient travelling distance. Deserts are difficult environments to live in.
Apart from the harsh climatic conditions, scarcity of basic human needs make survival quite difficult. However, it's possible to make life in the desert bearable.
These are the needs of people living in the deserts in order of importance: water, fire.