Mining

The first step in surface coal mining is

• to remove and set aside the soil that covers the area to be mined

• to use heavy equipment to take core samples.

• to test to see if quarrying would be more effective.

• to make cuts in the coal for easier removal

Tags

NGSS.MS-ESS3-1

A serious hazard of coal mining is

• a high pressure water blast

• an aggregation

• excess overburden

• an underground mine fire

Dredging streambeds may be an effective technique for mining

• silica

• coal

• gold

• sulfur

Tags

NGSS.MS-ESS3-1

Before mining a site, a mining company must do all of the following except

• obtain permits from state agencies.

• comply with federal regulations.

• obtain bonding.

• cut into a section of the longwall.

What is the arrangement of atoms in a mineral?

• porous, woven patterns

• regular, repeating geometric patterns

• irregular patterns

• clumped groups of like elements

Tags

NGSS.MS-PS1-1

Nonmetallic minerals prized mainly for their beauty, rarity, or

• aggregates

• overburden

• native elements

• gemstones

Which of the following is not affected when soil is removed from a surface mine?

• plant life

• soil nutrients

• animal habitat

• deep coal seams

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Mining companies can identify areas of valuable mineral resources by

• mineral exploration

• smelting

• mineral excavation

• dredging

Tags

NGSS.MS-ESS3-1

Solar evaporation is practical in order to obtain salt from sea water in climates where rainfall is exceeded by

• evaporation

• snowfall

• high-speed winds

• humidity

Which of the following is not a way that ore minerals may form?

• cooling of magma

• circulation of hydrothermal solutions through rocks

• flooding of empty streambeds and rivers

• evaporation of water that contains salts