MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question.

1)  If the atomic number of an element is 6 and its mass number is 14, how many neutrons are contained in the nucleus?

A) 84 B)  20 C)  8 D)  0 E)  6

 

2)  The definition of a mineral includes words such as __________.

A) clastic and mafic

B) organic and solution

C) naturally occurring and crystalline

D) foliated and amorphous

E) none of these

 

3)  A(n) __________ has a negative charge and a very small mass.

A) proton B)  electron C)  nucleus D)  neutron E)  isotope

 

4)  The mass number of an atom is obtained by totaling the number of __________.

A) neutrons and positrons

B) positrons and neutrinos

C) electrons and protons

D) electrons and neutrons

E) protons and neutrons

 

5)  Metamorphism may result from __________.

A) chemical action

B) pressure

C) heat

D) any or all of these

E) only heat and pressure

 

6)  Granite and gabbro __________.

A) have a similar texture B)  have a similar mineral composition

C) A and B D)  are in no way similar

 

7)  Sedimentary rocks account for about __________ percent of rock exposures on the continents.

A) 35 B)  50 C)  20 D)  5 E)  75

 

8)  Soil consists of __________.

A) organic matter

B) air and water

C) mineral matter

D) all of these

E) both mineral matter and organic matter but not air and water

 

9)  A stream's channel can be straightened by creating __________.

A) meanders B)  a decreased gradient

C) artificial cutoffs D)  none of these

 

10)  The suspended load of a stream __________.

A) is deposited before the bed load

B) usually consists of fine sand, silt, and clay-sized particles

C) consists primarily of highly soluble substances

D) moves along the bottom of the channel by rolling, sliding, and saltation

E) none of these

 

11)  The central region of an atom is called the __________.

A) neutron B)  proton C)  nucleus D)  shell E)  electron

 

12)  Obsidian exhibits this texture.

A) pyroclastic

B) glassy

C) phaneritic

D) aphanitic

E) porphyritic

 

13)  Alternate wetting and drying or freezing and thawing often leads to __________.

A) creep

B) debris flow

C) solifluction

D) earthflow

E) none of these

 

14)  A(n) __________ forms when a block of ice is buried in drift and subsequently melts, creating a pit.

A) tarn

B) ar hat(e

)te

C) pater noster

D) kame

E) none of these

 

15)  The mass of an atom is concentrated in its __________.

A) electron B)  isotope C)  angstrom D)  neutron E)  nucleus

 

16)  Which of the rocks listed below is popular building stone?

A) diorite B)  basalt C)  gabbro D)  andesite E)  granite

 

17)  Which of the following is NOT true of soil?

A) It contains organic matter. B)  It supports plant growth.

C) It is the same as regolith. D)  It contains air and water.

 

TRUE/FALSE.  Write 'T' if the statement is true and 'F' if the statement is false.

18)  All minerals exhibit cleavage.

 

19)  In any uncombined atom, the number of protons equals the number of electrons.

 

20)  Slate is associated with high-grade metamorphism.

 

21)  Lahars occur in association with volcanoes.

 

22)  Alluvial fans form when the gradient of a stream is abruptly increased.

 

23)  Among the various silicate minerals, the ratio of oxygen atoms to silicon atoms remains constant.

 

24)  Mineral composition is the primary basis for distinguishing among the various chemical sedimentary rocks.

 

25)  Sheeting most commonly affects large igneous masses composed of granite.


 

MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question.

1)  C

 

2)  C

 

3)  B

 

4)  E

 

5)  D

 

6)  A

 

7)  E

 

8)  D

 

9)  C

 

10)  B

 

11)  C

 

12)  B

 

13)  A

 

14)  E

 

15)  E

 

16)  E

 

17)  C

 

TRUE/FALSE.  Write 'T' if the statement is true and 'F' if the statement is false.

18)  FALSE

 

19)  TRUE

 

20)  FALSE

 

21)  TRUE

 

22)  FALSE

 

23)  FALSE

 

24)  TRUE

 

25)  TRUE

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