The setting sun often looks oval in the shape because of__________?
A. The fact that sun really becomes oval in the evening
B. Refraction of rays of sun passing through the atmosphere
C. Optical illusion
D. Dispersion
Hailey’s comet is after every_________?
A. 84 years
B. 76 years
C. 1000 years
D. 365 years
Most important effect of the moon on earth is that it___________?
A. Causes weather change
B. Causes earthquakes
C. Causes solar and lunar eclipse
D. Effects tides of the ocean
The Lunar eclipse occurs when:
A. Moon is b/w the earth and the sun
B. Earth is b/w the sun and the moon
C. Sun is b/w the earth and the moon
D. Earth is at right angles to the direction of the sun and the moon
Who was the first to measure the earth’s radius
A. Galileo
B. Copernicus
C. Ptolemy
D. Eratosthenes