Question

1. choose the correct answer.

the most common way sedimentary rocks are formed is through ____.
freezing
heat
mechanical formation
chemical formation

1. match the steps with the descriptions of how sedimentary rock is formed.

____ layers of sedimentary rock form over time and under pressure.
____ eroded rock settles down in a process called deposition.
____ rocks on the earths surface get weathered.
____ weathered rocks are eroded by wind and water.

Explanation:

Question 5

Sedimentary rocks form mainly via mechanical processes (weathering, erosion, deposition, compaction, cementation). Freezing forms igneous/metamorphic? No. Heat is for metamorphic. Chemical formation is less common than mechanical. So "mechanical formation" is correct.

Answer:

C. mechanical formation (assuming options are labeled A: freezing, B: heat, C: mechanical formation, D: chemical formation; if labels differ, adjust to the option with "mechanical formation")

Question 6

To match the steps of sedimentary rock formation:

1. First, Rocks on the earth’s surface get weathered (initial step: weathering breaks rocks).
2. Then, Weathered rocks are eroded by wind and water (erosion moves weathered material).
3. Next, Eroded rock settles down in a process called deposition (deposition is settling of eroded material).
4. Finally, Layers of sedimentary rock form over time and under pressure (compaction/cementation of layers over time).

So the order (matching each step to its description) is:

• For "Layers of sedimentary rock form over time and under pressure": Step 4 (final step)
• For "Eroded rock settles down in a process called deposition": Step 3
• For "Rocks on the earth’s surface get weathered": Step 1
• For "Weathered rocks are eroded by wind and water": Step 2

If the dropdowns are to be filled with step numbers (e.g., 1,2,3,4) or labels like "Compaction/Cementation", "Deposition", "Weathering", "Erosion", the matches are:

• Layers of sedimentary rock form over time and under pressure: Compaction/Cementation (or Step 4)
• Eroded rock settles down in a process called deposition: Deposition (or Step 3)
• Rocks on the earth’s surface get weathered: Weathering (or Step 1)
• Weathered rocks are eroded by wind and water: Erosion (or Step 2)