A. 5 cm
B. 15cm
C. 10cm
D. 20 cm

A. England & Australia
B. Australia & New Zealand
C. England & New Zealand
D. India & Sri Lanka

A. Three years
B. Five years
C. Four years
D. Six years

A. Three years
B. Seven years
C. Five years
D. Nine years

A. London
B. Beijing
C. Jakarta
D. Moscow

A. Palestine
B. Yugoslavia
C. Vietnam
D. U.K

A. 4th April, 1949
B. 1st September, 1966
C. 12th December, 1990
D. 20th January, 1950

A. Carbon dioxide
B. Hydrogen
C. Oxygen
D. Nitrogen

A. No atmosphere ever formed there
B. The rocky surface completely absorbed gases
C. Due to the low temperature, gases have condensed
D. Its gravitational pull is not strong enough to hold an atmosphere

A. 1866
B. 1876
C. 1888
D. 1896