Earth Science Ch. 7

3. Acid rain contains rainwater mixed with sulfuric acid or _____ acid
6. Plants that produce weak acids that can wear away a rock’s surface are __________
7. Limestone weathers very quickly because it contains a lot of ______
8. Weathering occurs fastest in _____, wet climates
9. The reaction of water with other substances is __________
10. Rusting is caused by ___________
13. To replace minerals used up by plants or washed away by leaching, farmers use ________
15. The parent material of soil is _________
16. The process by which minerals in soil are removed or washed away is called _______

1. The organic material in soil is ________
2. Substances that fill the spaces between soil particles are _______ and air
3. Potassium, phosphorus, and nitrogen in soil provide plants with ________
4. A soil with fine texture would likely contain a lot of _____
5. Rocks containing a lot of quartz weather _______
6. Ice wedging and root action are examples of _______________ weathering
11. Soil with a chemical makeup the same as the parent material is ______ soil
12. Potholes in streets are caused by ice ___________
14. The texture of a soil is determined by the soil particles’ _______