اجابة التعريفات (نصوص جغرافيه)

1. low latitude desert : sometimes it called tropical deserts are products of still different conditions.they can be understood only by taking into account the general planetary circulation of the atmosphere . these desert center around latitudes 20 to 25 degrees north and south and may extend approximately between latitudes 15 to 30 degrees , these are the latitudes and of the sub tropical high pressure belts or horse latitudes and of the trade winds for example the sahara in northern africa and the kaliharin in south west africa .
2. polar latitude desert: One of the basis of origin ,deserts may be grouped in to three classes polar,middle,latitude and tropical . polar deserts do not concern us at the present at least the includes the areas of great ic sheets the drought of polar deserts is what may be called (physiological drought ) sufficient moisture is present in the ice sheets of Antarctica and Greenland for plant growth but itis not available because it is frozen .
3. solar system: sun and every thing that travels around it , our solar system is always in motion , eight known planets and thiere moons along the comets asteroids and other space objects orbit the sun is the biggest object in our system .
4. light year distance : people use aunit called light year which travel 300000 kilo meter per second and it is mean is the distance that light can travel in year.
light year = 300000*60*60*24*365.25
5. residual soils: were classified according to the type of rock from which they where derived , thus limestone soils,sandstones solis ,gravelly soils ,granitie and other soils were recognized. Transported soil were classified as glacial,alluvial,conuvial,eolian,lacstrine and marine. According to the way in which the materials were deposited, such aclassification may have value , but it fails to take into account that there are factors other than parent material which contribute to the differenation of soil types.
6. Drangnachosten:
Itis a try from the landlocked to reach the sea.
It lead to the corridors connecting astate with the coast
For example
• Polish corridor which gave the new Poland share of the Baltic coast . Hitler used the letter situation as the reason for going to war with Poland.
• The outlet of the Belgian congo.

7.pedologist
he is the Scientist who stuy Pedology and Pedology is the study of soils in their natural environment. It is one of two main branches of soil science, the other being edaphology. Pedology deals with pedogenesis, soil morphology, and soil classification, while edaphology studies the way soils influence plants, fungi, and other living things.