The energy that warms Earth's surface comes primarily in the form of __________.
a. ultraviolet light from the Sun
b. visible light from the Sun
c. heat from the Sun
d. heat from Earth's interior
e. infrared light from the Sun
Answer : b. visible light from the Sun
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Which of the following describes a major similarity between Titan and Earth?
A) Both have nearly identical atmospheric compositions of nitrogen and oxygen. B) Both have features of erosion due to a liquid, except on Titan it is liquid methane and ethane rather than liquid water. C) Both have many active volcanoes erupting with molten rock, except the rock is higher density on Titan. D) The two worlds have very similar surface temperatures and surface compositions.
Cosmology is the study of the structure, history, and evolution of the observable Universe
a. True b. False Indicate whether the statement is true or false
According to the steady state theory, the universe did not expand
Indicate whether the statement is true or false
Other than Earth, which of the following has visible polar caps?
A) Mercury B) Venus C) The Moon D) Mars E) Jupiter