The rock _____ cools and crystallizes from magma deep underground. This is the main rock type of the continental crust and may be quarried for building stone. This rock type is found at Enchanted Rock, Texas.

The United Nation’s Intergovernmental Panel on Climate Change (IPCC) has stated that there is a high probability that the current driving force of Climate Change is _____.

Liquefaction during an earthquake is caused because _____.

_____ involves capturing greenhouse gases and pumping them underground.

The rock _____ cools and crystallizes from magma deep underground. This is the main rock type of the continental crust and may be quarried for building stone. This rock type is found at Enchanted Rock, Texas.

According to the USGS, which state currently has the most human-induced earthquakes linked to waste water injection wells? _____

The current population of the earth is approximately _____ people.

A mineral _____ has already been discovered and can be extracted legally, technically, and economically.

_____ refers to the maximum size to which a population can grow, given a resource base.

All of these are common environmental impacts of underground coal mining EXCEPT _____.