Look at the map of the united states. which of the following would be a reasonable estimate for the amount of the u. s. coastline that is in the "moderately eroding" category?

*remember, these are estimates and should fall within an acceptable range.

a. less than 5%

b. 10-20%

c. 70-85%

answer:

c. 70-85%

explanation:

70-85% of the u.s. western, northern, and southeastern coastlines are in the "moderately eroding" category, shown in comparison to the rest of the visual.

that would be because of both gravity and friction. so     c

the only real purpose of sputnik 1 was to beat the us into space. we were getting close to launching a useful satellite, explorer 1 - which launched on january 31, 1958. the ussr had to beat that, so they launched sputnik 1 on october 4, 19