The source of Yellow River is ____.
(a) Mountains of Tannu-Ola
(b) Lake Ontario
(c) Hasca Lake
(d) Kunlun Mountains
Answer: d
The longest river of the world is _____.
(a) Ob
(b) Nile
(c) Volga
(d) Purus
Answer: b
The length of the Amazon River is _____.
(a) 6400 km
(b) 5910 km
(c) 7111 km
(d) 8110 km
Answer: a
The outflow of Yangtze River is _____.
(a) Gulf of St. Lawrence
(b) Amazon River
(c) China Sea
(d) Ob River
Answer: c