The symbol for carbon is
a. Ca.
b. Cr.
c. Co.
d. C.
d
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Which of the following is the underlying reason why Venus has so little wind erosion?
A) its relatively close distance to the Sun B) its slow rotation C) its thick atmosphere D) its small size
The parallax angle of the Sun is 1 arc second
a. True b. False Indicate whether the statement is true or false
The inflation theories of the Universe allow for the existence of other unobservable Universes that may be expanding or collapsing.
Answer the following statement true (T) or false (F)
The solar radiation curve is
A) a dent in the spherical Sun. B) the path of the Sun as it circles Earth. C) a plot of Sun's brightness versus frequency of emission. D) a plot of sunlight colors versus their frequencies. E) a plot of light intensity versus temperature of the Sun.