The asthenosphere and lithosphere are parts of earth's
a) geosphere
b) hydrosphere
c) atmosphere
d) biosphere

Why is the future for life on earth bleak?

In which area will soil formation be greatest? a a steep slope in a warm,b wet climate a flat area in a warm,c wet climate a north-facing area on a steep slope a flat area in a cold, d wet climate description

Zac wanted to determine the measure of r and of ? r in the triangle below. to fine the measure of r, zac sets up the problem.42^2 + 24^2 = r 2. determine whether zac set the problem up correctly.