Which materials undergo radioactive decay? Check all that apply.

atoms that are unstable
elements that have a half-life
atoms that release energy and particles
elements that have turned into a new element
elements that have a consistent number of particles

[fw.02]sinkholes are often formed as a result of the actions of. a.heat on recharge b.pressure on aquifers c.acid in groundwater d.minerals in hot springs

The earth rotates on its axis and revolves around the sun every

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?