How are the polar regions of Mercury and the Moon similar?
A) Both are covered by huge mare-type basins from impacts.
B) Both seem to have ice pockets in the deepest, darkest crater floors.
C) Both have bright dry ice polar caps, like Mars.
D) Both have lakes of liquid water under their regolith.
E) Both have been hit by large comets that melted there.
Question 2
If the Hubble Constant is 70 km/sec/Mpc, the accelerating universe is about 10 billion years old.
Indicate whether the statement is true or false
moon light
Mare Basalt
A typical distributor-type diesel injection pump showing the pump, lines, and fuel filter.
Air-Mass Source Regions for North America
High stress, by household type (age-standardized), age 18+, Canada, 1994-1995
A fibrous root system has similar-sized adventitious roots that branch from the stem