FREE SCIENCE AND STUDY GAMES ABOUT CH.5 FINAL

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FREE SCIENCE AND STUDY GAMES ABOUT CH.5 (FINAL)

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -32 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: _______ refers to the group of destructive processes that change the physical and chemical character of rocks at the Earth's surface.

Answer:

Weathering

Question 2: When feldspar is attacked by carbonic acid it forms _____.

Answer:

a clay mineral Question 3: The removal of a great weight of rock above a batholith by erosion allows the granite to expand forming ______.

Answer:

sheet joints Question 4: Plants and burrowing organisms contribute to soil development by __.

Answer:

All of the answers are correct.

Question 5: (T/F) Oxygen is abundant in the atmosphere but it does not combine with minerals of the Earth's crust.

Answer:

False Question 6: (T/F) Chemical weathering will eventually change a quartz crystal into clay minerals.

Answer:

False Question 7: A soil formed entirely through the weathering of basalt would not contain sand-sized grains of __.

Answer:

quartz Question 8: _____ is the mineral least susceptible to chemical attack on the Earth's surface.

Answer:

Quartz Question 9: What, in terms of Earth systems, forms an essential interface between the geosphere, biosphere, hydrosphere, and atmosphere?

Answer:

soil Question 10: (T/F) Sand-size grains of feldspar can be preserved in a soil profile over great time periods because of feldspar's resistance to chemical weathering.

Answer:

False Question 11: Water that has trickled down into a joint in a rock can freeze, expand, and _____.

Answer:

widen the crack and hastening the rock's disintegration

Question 12: _______ are commonly left after complete chemical weathering.

Answer:

Quartz and clay minerals

Question 13: The _______ horizon is the uppermost layer of a soil; it consists of organic material

Answer:

O Question 14: The _______ horizon is the dark-colored soil horizon that is rich in organic material and forms just below the surface vegetation

Answer:

A

Question 15: As soils mature, distinct layers called ______ appear.

Answer:

horizons

Question 16: Frost wedging is most effective __.

Answer:

in areas with many days of freezing and thawing Question 17: (T/F) An acid is a chemical compound that gives off hydrogen ions (H+) to a chemical reaction.

Answer:

True

Question 18: _______ is a byproduct of rock weathering.

Answer:

Soil Question 19: (T/F) The reduction of pressure on a body of rock can cause it to crack as it expands.

Answer:

True Question 20: The most important natural source for the formation of acid for rock weathering at the Earth's surface is dissolved _______.

Answer:

carbon dioxide

Question 21: (T/F) The term mechanical weathering refers to changes in a rock that are physical; there is little or no chemical change.

Answer:

True Question 22: The _____ horizon is the incompletely weathered parent material lying below the B-horizon

Answer:

C Question 23: (T/F) Plants, such as roots growing in cracks, and animals compacting the soil, have little influence on mechanical weathering.

Answer:

False Question 24: (T/F) Without chemical weathering, the elevated levels of carbon dioxide in the atmosphere would have long ago made the Earth too hot to sustain life.

Answer:

True

Question 25: Chemical weathering generally proceeds __.

Answer:

along contacts between mineral grains Question 26: ___ is the picking up and physical removal of rock particles by an agent such as wind, flowing liquid water, or glaciers.

Answer:

Erosion Question 27: The ____ describes the process in which this dominant greenhouse gas circulates among Earth systems.

Answer:

carbon cycle