What does it mean that a source of energy is nonrenewable? (1 point) A. Once used, it needs to be reprocessed for reuse.
B. It does not create pollution 'when used.
C. With proper administration,
can be reused.
B. There is only a limited supply that can be used.

the answer is b because its nonrenewable its basically saying that even its you use a certain source of energy you can only use it once because its either not strong enough or its limited to a certain amount

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.