3. Give reasons why :-
1) Very few people inhabit Sahara area.
2) There are hardly any original prairies left today.
3) The tribes of the Amazon basis live in stilt houses.
4) The Ganga-Brahmaputra basin is densely populated.
Answers
Answer:
1- because of the very harsh climate.
Explanation:
2-because in the prairies ecosystem the soil is very fertile,productive and rich in nutrients therefore now nearly all of the prairies are converted into commercial farms. 3-The main reason to build their house on slits in the amazon basin is , In the rainy season the Amazon River rises, often flooding in its path. A house built on stilts is safer when the river rises. 4-GANGA AND BRAHMAPUTRA REGION IS THICKLY POPULATED BECAUSE IT IS SAID TO BE THAT THE PLAINS FORMED BY THESE RIVERS ARE MOST FERTILE LAND IN THE WORLD. . SO PEOPLE CAN LEAD THEIR LIVELIHOOD BY FARMING SO THESE AREA IS THICKLY POPULATED. ..