Unit 4 Exam

1. Which of the following is NOT a characteristic that all minerals must have?

• Naturally occurring

• Organic

• 1. solid under normal conditions

• 1. fixed chemical composition

  Which characteristic of a mineral is the most easily observed but the least reliable?

• Color

• Luster

• Streak

• Hardness

Which mineral property is determined by rubbing it on a rough surface?

• Color

• Luster

• Streak

• Hardness

The Moh’s scale shows the range of which mineral property?

• Color

• Luster

• Streak

• Hardness

Which of the following would be found in a quarry?

• Gold

• Copper

• Sand

• Iron

  You found a glassy mineral with no visible crystals in it.  What can you tell about the formation of this mineral?

•   It was formed by slowly cooling magma

• It was formed by rapidly cooling magma

• It was formed from igneous rocks

• None of these is correct.

Which of the following is NOT true of mining?

•   It will likely become more costly to mine in the future.

• We can reduce our need to mine by recycling mineral-containing materials.

• Minerals are used to produce household items such as electronics and cosmetics.

• The environmental impact of mining will likely remain the same in the future.

   Acid rain slowly degrades a statue.  This is a type of

 

• parent weathering

• physical weathering

• organic weathering

• chemical weathering

The Dust Bowl lifted sediment into the air in large clouds of dust and soil.  This was an example of which type of wind erosion?

• creep

• saltation

• suspension

• eluviation

Which type of erosion causes channels that are randomly located?

• Water

• Wind

• Chemical