In 2011, the world’s population approached . A.
ten billion
B.
seven billion
C.
two billion
D.
one billion

Please select the best answer from the choices provided
A
B
C
D

When volcanoes erupt, magma (hot, molten rock) rises toward the surface of the earth. as magma cools, solid rock forms. this rock contains substances from the interior of the earth. which of the following natural resources is likely to be plentiful near subduction zones where volcanic activity has occurred in the past?