What is a macron, this is a legit question

Compare the partition of southeast asia to the partition of africa how was it similar

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?

Soil is made of air water organic material minerals weathered rock