Suppose we use a baseball to represent Earth. On this scale, the other terrestrial worlds (Mercury, Venus, the Moon, and Mars) would range in size approximately from that of ________.
A) a golf ball to a baseball B) a dust speck to a basketball
C) a golf ball to a beach ball D) a dust speck to a golf ball
Question 2
A gas heated to millions of degrees would emit
A) mostly radio waves.
B) mostly X-rays.
C) no light, because it is too hot.
D) mostly ultraviolet light.
E) an equal amount of all wavelengths of light.
On average, the ratio of carbon to nitrogen is much higher in terrestrial plants than in other major
The Scale of Life
Comparative sizes of the Earth and the Moon
Mercury Element
Mercury as a Pollutant
The Distribution of the Earth's Wealth