The thermoshpere is 415 km deep. Calculate the percent of the atmosphere made up by the thermosphere if the total atmospehere extends 500 km.

415/500 = .83 = 83% (as Bobby indicated)

83%

83%

To calculate the percent of the atmosphere made up by the thermosphere, you need to find the ratio of the depth of the thermosphere to the total depth of the atmosphere and convert it to a percentage.

First, let's determine the ratio: the depth of the thermosphere is 415 km, and the total depth of the atmosphere is 500 km.

Ratio = Depth of thermosphere / Total depth of atmosphere = 415 km / 500 km
Ratio = 0.83

Next, convert the ratio to a percentage by multiplying it by 100.

Percentage = Ratio x 100 = 0.83 x 100
Percentage = 83%

Therefore, the thermosphere makes up approximately 83% of the total atmosphere.