Which factors add to the greenhouse effect and are caused by human activities? select two options.

Amineral forms from water at the edge of a lake. which statements best describe this mineral? check all that apply. the mineral formed from lava. the mineral formed through evaporation. the mineral formed when hot water cooled. the mineral crystallized from magma. the mineral crystallized from dissolved elements and compounds.

Which type of seismic waves are confined at the surface

Which layer surrounds the center of the earth? a: crust b: core c: mantle