Match the layer of the Earth in column 1 to the characteristic in column 2. Inner core
?
Faults, plates
Crust
?
Heat convection
Mantle
?
Solid iron
Outer core
?
Liquid iron

"water seeps into rock cracks and dissolved minerals there.the solution travels through cracks in the. eventually concentrating into large crystals." which process is that

In order from largest to smallest what are earths five main oceans

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks