Humans (biosphere) harness energy from the wind by having it spin wind turbines to produce electricity for use on earth a) geosphere and biosphere b) atmosphere and geosphere c) biosphere and atmosphere d) hydrosphere and geosphere

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

golgi body just took the test on edge