171 km³ per year.
0.006% = 0.006/ 100 = 0.00006 ;
0.00006 * 2,850,000 km³ = 171 km³ per year.
Answer : Hopi.
Explanation : The Hopi tribe who are a Native American tribe, are the ones who primarily lived on the Hopi Reservation in northeastern Arizona.
These were the group of people who believed that humans emerged from a hole in the earth.
<span>being able to read and write, they would ask blacks a really hard question on theology or something about the constitution and then ask the next guy in line to write the letter</span>