On the map of the united states shown below, four lines have been drawn and labeled a, b, c, and d

the length of which line best represents the distance from earth’s surface to the top of the mesosphere?
(1) a
(2) b
(3) c
(4) d

Mesosphere is the layer after stratosphere, which is after troposphere, as seen from Earth in the direction of Space.

It starts at 60 km and ends at 120 km, after which comes the termosphere.

So we're looking for a line that's closest to 100 km, and this is the shortest line, A.

The war began as a fight between mayans and the landowners of the country. the main causes of the guatemalan civil war was started by the greed of the united fruit company, the fear of communism, and the racism toward the  mayan  people.