Earth's sky is blue during the day because:
A) red wavelengths are lost as solar radiation passes through the vacuum of space.
B) the sun produces more blue wavelengths that it produces in any other color.
C) the molecules in the atmosphere scatter blue wavelengths of light.
D) the atmosphere absorbs blue wavelengths of light.
C
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Radioisotopes ______.
A) emit radiation as they decay into more stable atoms B) emit only radio waves C) are charged atoms D) are atoms with differing numbers of protons
How might building a dam on a river that flows to the sea affect a coastal beach?
What will be an ideal response?
Ironically, India's violent war of independence has been followed by a peaceful postcolonial history
Indicate whether this statement is true or false