Compared to optical telescopes, radio telescopes are built large because
A) radio waves have very long wavelengths.
B) radio waves are absorbed by the atmosphere.
C) atmospheric turbulence is more of a problem.
D) they're less expensive to make than optical telescopes.
E) radio sources are harder to find.
Question 2
Which three worlds have almost identical densities?
A) Mercury, Mars, and our Moon
B) Mercury, Venus, and Earth
C) Earth, Moon, and Mars
D) Mercury, Earth, and Mars
E) Deimos, Phobos, and our Moon
Pekingese's large eyes
Several species of squirrels have melanistic phases. In large parts of United States and Canada, the
Primates in the New World tend to be small-bodied compared to those elsewhere.
The proboscis monkey demonstrates that large gut size contributes to a lower EQ.
Inflated Phrases Compared with Concise Terms
Reed-Sternberg cells are large, abnormal lymphocytes that may contain more than one nucleus. These ...