Our Earth is also known as _______ planet
A. Red
B. Yellow
C. Blue
D. Green
Correct Answer: C (Blue)
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A. Red
B. Yellow
C. Blue
D. Green
A. Convection within Earth’s mantle.
B. Plate drift.
C. Subduction of smaller plates.
D. Earthquakes.
A. 1960s
B. 1980s
C. 1970s
D. 1950s
A. Thermometer
B. Barometer
C. Hygrometer
D. Anemometer
A. less than 28%
B. about 75%
C. about 87%
D. about 97%
A. Sodium oxide
B. Iron oxide
C. Silver oxide
D. Copper oxide
A. Ethane gas
B. Methane gas
C. Naphthalene gas
D. Ethanol