Examine the photographs above and answer each of the following questions - Junior Cycle Geography - Question 1A - 2018
Question 1A
Examine the photographs above and answer each of the following questions.
(i) State whether photograph A is an igneous, a sedimentary or a metamorphic rock.
(ii) S... show full transcript
Worked Solution & Example Answer:Examine the photographs above and answer each of the following questions - Junior Cycle Geography - Question 1A - 2018
Step 1
State whether photograph A is an igneous, a sedimentary or a metamorphic rock.
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Answer
Photograph A is a sedimentary rock. This classification is based on its layered texture and the presence of sedimentary features.
Step 2
State whether photograph B is an igneous, a sedimentary or a metamorphic rock.
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Answer
Photograph B is an igneous rock. It is characterized by its crystalline texture and the formation from cooled magma or lava.
Step 3
Name an example of a sedimentary rock.
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An example of a sedimentary rock is limestone.
Step 4
Describe and explain how the sedimentary rock named by you in part (iii) above was formed.
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Limestone is formed primarily from the accumulation of marine organisms' shells, coral, and calcareous algae. Over time, these materials accumulate on the ocean floor, where they undergo compaction and cementation due to pressure and the chemical action of minerals in water, leading to the formation of limestone.
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