(拜託 要簡單一點 不然我可不會說=ˇ=")
- 1 decade agoFavorite Answer
這塊沙漠大約形成於二百五十萬年以前,撒哈拉沙漠是世界上最大的沙漠。 This desert probably took shape 2,500,000 years ago, Sahara Desert was the largest desert in the world. 阿拉伯語撒哈拉意即“大荒漠”。 Arabic the Sahara mean " the heavy desert ". 位于阿特拉斯山脈和地中海以南，約北緯14°；線(250毫米等雨量線)以北，西起大西洋海岸，東到紅海之濱。 Lie to the south of Atlas and the Mediterranean, invite north latitude 14¡ã; Line (250 mm. Dr.eye: of isohyet) With the north, from the coast of the Atlantic Ocean in the west, reach the bank of Red Sea in the east. 橫貫非洲大陸北部，東西長達5600公里，南北寬約1600公里，面積約960萬平方公里，約佔非洲總面積32%。 Traversing the north of continent of Africa, the things are 5600 -km-long, north and south about 1600 kilometer wide, about 9,600,000 of area, account for Africa 32% of the whole area.
- 1 decade ago
The Sahara is the world's second largest desert after Antarctica. At over 9,000,000 square kilometres, it covers most parts of northern Africa. Its name derives from an Arabic word meaning "desert".
The Sahara covers huge parts of Algeria, Burkina Faso, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Western Sahara, Senegal, Sudan and Tunisia.
The climate of the Sahara has undergone enormous variation between wet and dry over the last few hundred thousand years. During the last ice age, the Sahara was bigger than it is today. The end of the ice age brought better times to the Sahara. Once the ice sheets were gone, the northern part of the Sahara dried out. However, not long after the end of the ice sheets, the monsoon which currently brings rain to the Sahara came further north and counteracted the drying trend in the southern Sahara. By around 2500 BC, the monsoon retreated south to approximately where it is today. The Sahara is currently as dry as it was about 13,000 years ago.Source(s): http://en.wikipedia.org/wiki/Sahara