Give reasons.
1. The summers are hot and winters are cold
2. Camel is called the ship of the desert.
3. Desert areas are thinly populated.
4. There is greenery near the Oases.
Answers
Answer:
It is all about the tilt of the Earth’s axis. Many people believe that the temperature changes because the Earth is closer to the sun in summer and farther from the sun in winter. In fact, the Earth is farthest from the sun in July and is closest to the sun in January!
During the summer, the sun’s rays hit the Earth at a steep angle. The light does not spread out as much, thus increasing the amount of energy hitting any given spot. Also, the long daylight hours allow the Earth plenty of time to reach warm temperatures.
During the winter, the sun’s rays hit the Earth at a shallow angle. These rays are more spread out, which minimizes the amount of energy that hits any given spot. Also, the long nights and short days prevent the Earth from warming up. Thus, we have winter!
Camel is called the "Ship of Desert" because it is the only means of transport found in deserts. The body of a camel has undergone various modifications that help it to survive in the hot and dry conditions of the deserts.
Camels have very long legs that help them to walk in the sand and prevent the heat of the sand from reaching their bodies.
They have a prominent back or hump. It stores food which helps it to survive without food in the deserts for several days.
Another important adaptation that helps the camel to survive in the desert is its ability to conserve water. They do not sweat and excrete only small amounts of water through urine. The camel dung is dry and devoid of water.
All this helps the camel to conserve water and enables them to live without water for several days.
Some of the factors which satisfy the fact behind the sparse population in a desert: No water is available and hence people could get dehydrated. the land is not fertile to grow crops, which means no agriculture and no food. The hot desert climate makes you catch heat strokes.
Deserts have no or very low rainfall and water may not be available to the plants. Since an oasis in desert areas serves as a water body plants can be seen growing around an oasis. The roots can reach out the sub soil source of water near an oasis.
Answer:
1 because of the rotation of the earth on its axis
2 because it has all features to survive in desert
3 because of harsh conditions
4 because of the favourable climate