Question

4 which of the following is a true statement. a water breaking apart rocks by freezing and thawing is an example of physical weathering. b water moving pieces of rock from one place to another is an example of chemical weathering. c glaciers carrying rock from one place to another is an example of chemical weathering. d glaciers carrying rock from one place to another is an example of physical weathering. 5 an area has experienced weathering and erosion for many years. over time, some rock formations have been left behind forming peaks and columns. what is a reasonable conclusion to draw? a the rock that has been carried away over time is very hard and resistant to weathering and erosion. b the peaks and columns are made of rock that are very easily weathered and eroded. c humans have protected the peaks and columns over time. d the peaks and columns are made of rock that are resistant to weathering and erosion. 6 mrs. mcgoos class is making a list of examples of how weathering and erosion changes the surface of earth. which of the following should not be on the list? a breaking down rocks b creating a canyon c building mountains d making new soil

Explanation:

• Question 4:
• Physical weathering involves the breakdown of rocks without changing their chemical composition. Water freezing and thawing (ice wedging) is a physical process as it just breaks rocks apart due to the expansion of water when it freezes. Chemical weathering changes the chemical makeup of rocks. Moving rocks (by water or glaciers) is erosion, not weathering.
• Question 5:
• If peaks and columns remain after years of weathering and erosion, the rock they are made of must be resistant to these processes. Rocks that are easily weathered would have been eroded away. There is no indication of human protection in the problem.
• Question 6:
• Weathering breaks down rocks, erosion can create canyons (by moving eroded material), and weathering of rocks contributes to soil formation. Building mountains is usually due to tectonic processes (like plate movements) rather than weathering and erosion which are mainly destructive processes (breaking down and moving materials).

Answer:

• Question 4: A. Water breaking apart rocks by freezing and thawing is an example of physical weathering.
• Question 5: D. The peaks and columns are made of rock that are resistant to weathering and erosion.
• Question 6: C. Building mountains.