Which characteristics describe the troposphere? Select two options.

is the innermost layer
contains the ozone layer
has the highest air pressure
spans 12–50 km above Earth
is a good place for planes to fly

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

Which of the following best summarizes the point of agreement?

The 5th term in a series of even number that begin 3x