CBSE-NET (UGC) Geography (Paper-II & Paper-III): Questions 648 - 652 of 1978
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Question number: 648
Question number: 649
Question number: 650
Appeared in Year: 2014
8 - 12 micrometers
0.7 to 3 micrometer
1 mm to 1 meter
0.4 to 0.7 micrometer
Question number: 651
The isolation of much of Africa from contact with more developed areas until recent times was due to the following reasons. Except
The character of African rivers made it hard to reach the interior by water.
The great Sahara desert barrier in northern Africa made it difficult to penetrate from the north.
Africa lacked in natural resources so nobody was interested.
The African shoreline was physically inhospitable to early visitors approaching from the sea.