The Sun’s mass is mainly consist of which of the following?
A. Hydrogen
B. Nitrogen
C. Carbon dioxide
D. Silicon (more…)
A. Hydrogen
B. Nitrogen
C. Carbon dioxide
D. Silicon (more…)
A. Plate boundaries
B. Plate surface
C. Ocean beds
D. All of the above (more…)
A. The Indus
B. The Ganges
C. The Yangtze or Chang Jiang
D. None of the above
A. The Nile
B. The Mississippi
C. The Danube
D. The Indus
A. USA
B. Canada
C. Bahamas
D. Cuba
A. 510.94 million km²
B. 492.102 million km²
C. 392.023 million km²
D. 692.192 million km²
A. Mariana Trench
C. Death valley
D. Lake Eyre
B. 34,902 miles
C. 44,902 miles
D. 54,902 miles