46. The hot, dry wind on the east or leeward side of the Rocky mountains (North America) is called
A. the Chinook
B. the Sirocco
C. the Harmattan
D. the Loo
47. The islands of Seychelles are located in the
A. Arctic Ocean
B. Atlantic Ocean
C. Indian Ocean
D. Pacific Ocean
48. The island of Sri Lanka formerly known as
A. Madagascar
B. Tasmania
C. Ceylon
D. None of the above
49. The highest sand dunes are found in
A. the Sahara desert
B. the Atacama desert
C. the Kalahari desert
D. the Gobi desert
50. The greatest variety of animal and plant species are found in
A. temperate grasslands
B. tropical moist forests
C. tundra regions
D. in hot deserts