Question

Give reason why the lower courses and mouth of the rivers Ob, Yenisei and Lena remain frozen throughout the year.

no spam​

Answer 1

Answer. Ice forms on the Ob from the end of October to the second week of November, after which the lower reaches begin to freeze solid. By the last week of November the entire river is frozen; the upper reaches remain frozen for some 150 days, the lower for 220.

Answer 2

Ob, Yenisei and Lena drain into the Arctic Ocean.

The Ob River, also Ob', is a major river in western Siberia, Russia, and is the world's seventh-longest river. It forms at the confluence of the Biya and Katun Rivers which have their origins in the Altay Mountains. It is the westernmost of the three great Siberian rivers that flow into the Arctic Ocean.

The Yenisei also Romanised Yenisey, Enisei, Jenisej, is the largest river system flowing to the Arctic Ocean. It is the central of the three great Siberian rivers that flow into the Arctic Ocean.

The Lena is the easternmost of the three great Siberian rivers that flow into the Arctic Ocean. With a mean annual discharge of 588 cubic kilometers per year, it is the second largest Arctic river after the Yenisey, and the largest river whose catchment is entirely within Russia

⠀

$ItzGurung \beta o \gamma$

$\huge\underline{\underline{\texttt{\pink{Follow \:me}}}}$