RECAP QUIZ GRADE 8

1. __________ is the process by which commercially valuable resources are removed from earth.

• Mining

• Dwindling

• Following

Although there are different forms of energy, about ____ of the energy consumed by humans comes from the burning of Fossil fuels.

• 89%

• 90%

• 88%

The deposits are often trapped between layers of ___________ rock.

• impermeable

• cold

• hard

Deposits of natural gas and oil can be extracted by ______ down into the ground.

Like minerals, fossil fuels are not distributed evenly around the globe and are ________.

• renewable

• nonrenewable

Reserves of coal are projected to last more than ___ years, but natural gas and oil reserves may run out much sooner.

Fossil fuels are _______ all the time.

• forming

• joining

• turning

________ is the primary source of water for more than 2 billion people worldwide.

• ground sea

• groundwater

• ground lake

What is the meaning of the acronym G.R.A.C.E?

It is a synthetic materials classified as strength and heat resistance.

• aramid fiber

• arabian fiber