Question

select all the correct answers.
the image shows a sandstone formation with visible bands of different colors. what do the bands indicate about how this sedimentary rock was formed? choose two answers.
the rock was made from more than one type of material.
water was absent during the compaction and cementation process.
sediments and other matter were deposited in layers before lithification.
the rock was stretched horizontally by the pressure from surrounding rocks.
layers of hot liquids in the rock cooled and solidified at different temperatures.

Explanation:

1. For "The rock was made from more than one type of material": Different colored bands suggest different materials (sediments) were involved, as each band likely has distinct components.
2. For "Sediments and other matter were deposited in layers before lithification": Sedimentary rock formation involves sediment deposition in layers (stratification) that later lithify (turn to rock). The visible bands are these layers, so this is correct.
3. Eliminating others: Water is usually involved in sedimentary rock compaction/cementation (so "Water was absent..." is wrong). Stretching horizontally isn’t indicated by banding (sedimentary layering is from deposition, not pressure - induced stretching). Hot liquids cooling is igneous rock formation, not sedimentary (so "Layers of hot liquids..." is wrong).

Answer:

A. The rock was made from more than one type of material
C. Sediments and other matter were deposited in layers before lithification