a mountain range in the eastern United States extending from Quebec to the Gulf of Mexico; a historic barrier to early westward expansion of the United States
19 The Blue Ridge Mountains form part of the eastern Appalachian Mountains.
(geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other
Describe internal forces such as volcanoes, earthquakes, faulting, and plate movements that are responsible for the earth’s major geological features, such as mountains, valleys, etc.
cold-blooded vertebrate living on land but breeding in water
Identify physical and behavioral adaptations that enable animals, such as amphibians, reptiles, birds, fish, and mammals, to survive in a particular environment.
the length of a straight line through the center of a circle
Topic
Mercury
Neptune
Diameter
4,879 km
49,572 km
Temperature Range
–173oC to 427oC
–223oC to –220oC
Atmosphere
Hydrogen, Helium, Oxygen
Hydrogen, Helium, Methane
Moons
None
13
Average Distance from Sun
57,910,000 km
4,504,300,000 km
Rings
None
Yes
F G H J
Both planets have moons.