Earth Science Ch. 7 & 8 Review

Using radioactive elements to tell how old a rock is.

Mining by dredging is called what?

Wisely using our limited natural resources is called what?

The absolute age of a rock is its numerical age of the rock.

Mining close to surface is called what?

Undeformed layer is older than the one above it describes which law?

Hydrostatic Energy is a renewable resource.

Veins of heavy metals.

One of the pros, or positives, of biomass are that it adds to global warming.

Underground mining is called what?

All of the following are considered fossil fuels except what?

Energy by the splitting of the atom is called what?

The same processes that are going on now were the same in the past is called what?

A Paleontologist studies what?

If left undisturbed, layers will form horizontally describes what?

Igneous intrusion is always younger than the layer it cuts through describes what?

Mineral deposits from which metals and non-metals are mined profitably.