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.
Terrestrial plants and animals can be characterized by analogous pathways for water gain and loss.
6-8 Earth’s Major Tectonic Plates
Earth’s Magnetosphere
Apparent Magnitude Scale
Worldwide Variations in Population and Income Levels Developed countries represent only 18% of the
Distance from Earth to Sun schematic