HOW ROCKS TURN INTO SOIL?
1. A. DIRECTIONS: Underline the agents of weathering of rocks in the following statements.
Then write MW if it is mechanical weathering and CW for chemical weathering.
Example: MW 1. Running water moves rocks which can bump each other and break.
1. The heat of the sun opens cracks into the rocks.
2. People dig mountains and rocky places for mining activities.
3. Iron oxide (iron reacts with oxygen) weakens the rock.
4. Wind blows and it hurt particles of sand and hurt against the rocks.
5. The mineral calcite, found in limestone, completely dissolved by carbonic acid
6. Exfoliation is the peeling off of the outer layers of rocks due to the change in
temperature
7. Freeze-thaw or frost wedging occurs when water continually seeps into cracks.
freezes and expands, eventually breaking the rock apart.
8. Animals dig into the rocks exposing fresh surfaces to further weathering
9. Leaching is the continued removal of minerals from the soil by solution
10. When iron oxide or rust is formed on a rock surface, the rock crumbles to pleces.

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JANRICZIONGUTANGGO JANRICZIONGUTANGGO · Answer 1

Answer:

1. The heat of the sun opens cracks into the rocks (CW)

2. People dig mountains and rocky places for mining activities. (MW)

3. Iron oxide (iron reacts with oxygen) weakens the rock. (CW)

4. Wind blows and it hurt particles of sand and hurt against the rocks. (MW)

5. The mineral calcite, found in limestone, completely dissolved by carbonic acid (CW)

6. Exfoliation is the peeling off of the outer layers of rocks due to the change in temperature (MW)

7. Freeze-thaw or frost wedging occurs when water continually seeps into cracks. Freezes and expands, eventually breaking the rock apart. (MW)

8. Animals dig into the rocks exposing fresh surfaces to further weathering (MW)

9. Leaching is the continued removal of minerals from the soil by solution (MW)

10. When iron oxide or rust is formed on a rock surface, the rock crumbles to pleces. (CW)

Explanation:

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