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Life in the Tropical and Subtropical Regions
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This lesson has detailed sections on two main basins of the world.One, the Amazon basin and other the Ganga - Brahmaputra basin.The climate,natural vegetation and wildlife,people of these regions are being discussed.

Arpita Prakash
NCERTs series initiator at Unacademy 'Educator of the Month' for Feb'19 CBSE 0.1% Merit Certificate holder in Mathematics

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(44)
U
Unacademy user
You missed an important part which is imp for pre... susu - blind dolphin found in Ganga -brahmaputra rivers which is the indicator of the health of river (pollution levels )
You are awesome. I m from a law background and have no knowledge of geography but you made this so easy and easy to remember. Thank you so much.
Hummingbird is the only known birds to fly in both forward and backwards direction. And it is the smallest of all birds.
Hummingbird are the only species of birds that can reliably fly both forward and backward with precision without relying on the assistance of wind. Another interesting tit bit: The sword-billed hummingbird has the longest beak relative to its body size of any bird in the world. In fact, it is the only bird that sometimes has a bill longer than its body. The bill is so long, the hummingbird must groom itself with its feet. It also has to perch with its head tilted at an upward angle to be able to balance. But the upside is it can feed on flowers with particularly long corollas, reaching nectar that is unavailable to other hummingbird species.
Arpita Prakash
3 years ago
You are no less in learning and improving :)
You missed an important part which is imp for pre... susu - blind dolphin found in Ganga -brahmaputra rivers which is the indicator of the health of river (pollution levels )
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