The Oort cloud extends to _____ from the Sun
A) 100 AU
B) 1000 AU
C) 10,000 AU
D) 100,000 AU
D
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What chemical compound is responsible for Uranus and Neptune's color?
A. water B. methane C. complex organic compounds of sulfur and phosphorus D. ammonia
The only two planets which can transit the Sun are ________
Fill in the blank(s) with correct word
An air bubble underwater has the same pressure as that of the water. As the air bubble rises toward the surface (and its temperature remains constant), the volume of the air bubble
A) increases. B) decreases. C) remains constant. D) increases or decreases, depending on the rate it rises.
If light from a distant star passes close to a massive body, the light beam will:
A) bend towards the star due to gravity. B) continue moving in a straight line. C) change color to a shorter wavelength. D) slow down. E) accelerate due to gravity.