FREE AND STUDY GAMES ABOUT SCIENCE CHAPTER 2

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FREE AND STUDY GAMES ABOUT SCIENCE CHAPTER 2

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -60 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Granite lasts a long time when it is used for building in areas where the climate...

Answer:

is cool

Question 2: A permeable rock weathers easily because it...

Answer:

contains many small, connected airspaces.

Question 3: Some plants produce acids that result in ______ weathering.

Answer:

chemical Question 4: Geologists infer from the rounded eroded shapes of the Appalachian Mountains that...

Answer:

the mountains have been eroding for millions of years

Question 5: Living organisms in soil help to...

Answer:

mix the soil and make humus Question 6: The geological principle stating that the same processes that operate today also operated in the past is called....

Answer:

uniformitarianism Question 7: Rapid chemical weathering can be caused by _______, which is rain combined with pollutants.

Answer:

acid rain Question 8: Plowing removed the grass from the Great Plains and exposed the soil. What effect did this have when a drought struck the Great Plains during the 1930s?

Answer:

It helped to cause the Dust Bowl

Question 9: In which soil layer would you find loam that is rich in humus?

Answer:

A horizon Question 10: A rock that contains tiny, connected spaces through which water can move is said to be _______.

Answer:

permeable Question 11: Humus makes soil ______, or rich in nutrients that plants need to grow.

Answer:

fertile Question 12: One agent of chemical weathering is ______ which combines with water to form carbonic acid.

Answer:

carbon dioxide

Question 13: A type of plowing known as ________ helps conserve soil by disturbing it as little possible.

Answer:

conservation plowing

Question 14: The type of soil called loam is made up of...

Answer:

nearly equal amounts of silt, sand, and clay

Question 15: Decomposers are the soil organisms that..

Answer:

break down and digest the remains of dead organisms Question 16: The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is called...

Answer:

abrasion Question 17: The thick mass of grass roots that helps hold prairie soil in place is called...

Answer:

sod Question 18: What can cause the loss of soil that is not protected by plant cover?

Answer:

erosion by water or wind Question 19: The ____ horizon is a soil layer containing only partly weathered rock.

Answer:

B Question 20: The most important factors in determining the rate of weathering are...

Answer:

rock type and climate

Question 21: Most of the work of mixing humus within the soil is done by...

Answer:

earthworms Question 22: The loose layer of leaves on the surface of the soil is called _____.

Answer:

litter Question 23: The practice of plowing fields along the curves of a slope is called...

Answer:

contour plowing Question 24: When earthworms add their wastes to the soil then die and decay in the soil, they are contributing to the formation of...

Answer:

humus Question 25: Two factors that determine the rate of weathering are the type or rock and the

________.

Answer:

climate Question 26: In conservation plowing, why are dead weeds and stalks of the previous year's crop left in the ground?

Answer:

to retain moisture and hold the soil in place

Question 27: The texture, or particle size, of soil determines...

Answer:

how much air and water the soil can hold Question 28: After chemical weathering, the chemical makeup of the weathered rock is _______ as that of the original rock.

Answer:

different