How many miles is it between two parallels 1 degree apart

Needed fast 15 points the process of natural selection favors certain characteristics in organisms, while it selects against other characteristics. what would happen if there was zero variation between all of the organisms on earth? a.organisms would evolve to increase variety b.natural selection would operate faster c.less food would be available d.evolution through natural selection would not occur

How do oceanographers measure the salinity of ocean water?

When you cross a time zone going east, what happens to the time