Question

Fifty percent of the gases making up the atmosphere are found below ________. 10 miles (16.2 km) 6 â½ miles (10.4 km) 3 â½ miles (5.6 km) 8 miles (12.8 km)

Answer 1

im not sure what this means

Explanation:

Answer 2

5.6 kilometers gradpoint

Explanation:

i took the test