mn of stones and
Directions: Write TRUE if the statement is true and FALSE if the statement is wrong.
1. Glaciers and wind cause erosion and deposition.
2. Animal grazing causes the soil to lose and lead to erosions.
3. Erosion is the process by which rocks break down and change.
4. The rate at which weathering occurs depends on temperature.
5. Mechanical weathering changes the chemical composition of rocks.
6. Plants and animals are considered biological agents of weathering.
7. Oxidation is the chemical reaction of carbon dioxide in the air with other substances.
8. Water, oxygen, carbon dioxide, and acids are important agents of chemical weathering.
9. Hydrolysis occurs when acidic water caused the rocks to break producing clay and
soluble salts.
10. Rocks are weathered when lichens and moss give off acids which dissolve the minerals
from the rocks.
11. Continuous weathering leads to soil formation.
12. Humus is an accumulation of decayed matter such as plants and animals
13. Soils take one year to form.
14. As plants die, small organisms break down and decay material into organic matter.
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Answer:
1.false
2.true
3.true
4.true
5.true
6.true
7.false
8.false
9.false
10.false
11.true
12.true
13.true
14.false
Explanation:
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