<p> Chapter 7- Review</p><p>Section 7.1 1) What is weathering?</p><p>2) What can contribute to weathering?</p><p>3) What is erosion?</p><p>4) How do weathering and erosion work together?</p><p>5) What are the two types of weathering?</p><p>6) What is mechanical weathering?</p><p>7) Identify the five types of mechanical weathering.</p><p>8) What is abrasion?</p><p>9) What is ice wedging?</p><p>10) How do plants cause mechanical weathering?</p><p>11) How do animals contribute to mechanical weathering?</p><p>12) How does the release of pressure contribute to mechanical weathering?</p><p>13) What is chemical weathering?</p><p>14) Identify the agents of chemical weathering.</p><p>15) How is chemical weathering different than mechanical weathering?</p><p>16) How do mechanical and chemical weathering work together to break down rocks?</p><p>17) What is surface area?</p><p>18) How does surface area affect the rate of weathering?</p><p>19) How does water chemically weather rocks?</p><p>20) How does oxygen chemically weather rocks?</p><p>21) What is oxidation?</p><p>22) How does carbon dioxide chemically weather rocks? 23) How do living organisms chemically weather rocks?</p><p>24) What is acid rain?</p><p>25) How does acid rain chemically weather rocks?</p><p>26) What factors affect the rate of weathering?</p><p>27) What type of rocks weather easily?</p><p>28) What are permeable rocks?</p><p>29) What types of climates contribute to the weathering of rocks?</p><p>30) What type of climates does not allow rocks to weather easily?</p><p>Section 7.2 1) What is soil?</p><p>2) How does soil dorm?</p><p>3) What is bedrock?</p><p>4) List the different materials found in soil.</p><p>5) What is humus?</p><p>6) What does humus do for the soil?</p><p>7) Rank the particles of soil from largest to smallest.</p><p>8) What is loam?</p><p>9) What is a soil horizon?</p><p>10) Describe the A-horizon.</p><p>11) What is another name for the A- horizon?</p><p>12) Describe the B-horizon.</p><p>13) What is another name for the B-horizon?</p><p>14) Describe the C-horizon. 15) What is another name for the C- horizon?</p><p>16) List the horizons starting at the surface and moving down into the Earth.</p><p>17) Which horizon forms first? Why?</p><p>18) Which horizon forms second? Why?</p><p>19) Which horizon forms last? Why?</p><p>20) What affects the rate at which soil forms?</p><p>21) Describe three things that living organisms do for the soil.</p><p>22) What is litter?</p><p>23) What are decomposers?</p><p>24) What are the main soil decomposers?</p><p>25) What are fungi and what do they do for the soil?</p><p>26) What are bacteria and what do they do for the soil?</p><p>27) What do earthworms do for the soil?</p><p>28) What do burrowing animals do for the soil?</p><p>29) List the soil types of North America.</p><p>30) Describe a tundra soil.</p><p>31) Describe a northern forest soil.</p><p>32) Describe a prairie soil.</p><p>33) Describe a southern forest soil.</p><p>34) Describe a mountain soil.</p><p>35) Describe a desert soil.</p><p>36) Describe a tropical soil.</p>