1- Which of the following is true of fossils? A- They are remains or traces of p

Question

1- Which of the following is true of fossils?

A- They are remains or traces of prehistoric life

B- They are important inclusions in sediment and sedimentary rock to interpret geologic past

C- They include permineralized remains, molds, casts, impressions and trace fossils

D- All of the above are correct

2- Glaciers are best describes as ________.

A- Slowly flowing masses of thick ice

B- Ice forming over hundreds to thousands of years

C- Ice surviving summer melt

D- All of the above

3- Radiometric dating is best suited to _______.

A- Igneous rocks

B- Metamorphic rocks

C- Sedimentary rocks

D- Sedimentary rocks

E- Iron-rich minerals

4- To develop a geologic time scale that is applicable to the entire Earth, rocks of similar age in different regions must be matched up through the process of __________.

A- Numerical dating

B- Relative dating

C- Correlation

D- Decomposition

5- An unconformity in which younger sedimentary strata overlie older metamorphic or intrusive igneous rocks is a(n)_____________.

A- Conformity

B- Disconformity

C- Nonconformity

D- Angular unconformity

6- A classic erosional signature (landform or feature) of an alpine glacier is (are)________.

A- A U-shaped valley

B- A V-shaped valley

C- Karst topography

D- Moraines

7- Which of the following best describes a desert?

A- A region so arid (dry) it contains no permanent water

B- A region so dry it contains no permanent water

C- A region so hot no vegetation can grow

D- All of the above

8- Which of the following is designed to prevent or slow shoreline erosion?

A- Groins

B- Seawalls

C- Beach nourishment

D- All of the above

9- By putting events in relative order, scientists can use that order to determine precisely how long geologic event took place.

A- True

B- False

10- What are some of the causes of ice ages throughout geologic time?

A- Decreases in greenhouse gases in the atmosphere

B- Increases in Earth’s overall albedo

C- Changes in ocean currents

D- All of the above

11- Though rare, water erosion is important in shaping desert landscapes and occurs as _______.

A- Ephermeral streams

B- Flash floods

C- Permanent streams

D- A & B are both correct

Explanation / Answer

1) A. They are remains of prehistoric life. Generally fossils are adjusted within the paleo rocks. So these fossils may be used to trace the age of the rock bed as well as the depositional environment.

2) A- Slowly flowing masses of thick ice

3) A- Igneous rocks

4) C- Correlation

5) C- Nonconformity

6) A- A U-shaped valley

7) D- All of the above

8) D- All of the above

9) B- False

10) C- Changes in ocean currents

11) A- Ephermeral streams

10)

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