D) Move farther apart from one another. Sublimation is when a solid changes to a gaseous state. The particles that were tightly compact into a solid are released and spread away from eachother into the air as a gas.
A. Bike A travels 2x or 2/1 and bike B travels 1/1
(I think this is right)
Differences in elevation are best shown using a topographic map. This is because it uses a large-scale detail representation of the the Earth's relief, mostly by using contour lines. Some traditional definitions show both natural and manmade features, which make it the best map to use when dealing with elevations.
Most likely answer would be A
Option C is the correct answer