How can a country improve the problem of illegal immigration (Answers searched from the internet are not allowed)

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?

What is meant by the term relative location?

Choose the correct chronological or of the time periods