Answer:
The answer should be D. From the remains of dead plants and animals.
False The Rocky Mountain doesn't
Answer:
There is a gradual decline of volcanic age form the continental to the oceanic. As some of the volcanoes get eroded away.
Explanation:
- The hotspot volcanoes are transported by plate movements as they move away form the mantel plumes the hotspot volcanism decreases. Then eventually the hotspots become extinct.
- Thus on the basis of age the youngest are near the places active tectonism where the magma is directly ground underneath the ground surface.
D. Rock type
Explanation:
The major factor that influences the strength of rocks is the rock type.
Different rock types are known to have their own relative strength.
Based on their strength, rocks are classified into hard and soft rocks.
Soft rock types are dominated by sedimentary rock. Sedimentary rocks are formed by accumulation and deposition of sediments. They are often layered.
Metamorphic and igneous rocks are usually classified as hard rocks. These rocks forms under very high temperature and pressure conditions.
In engineering applications, the soft rocks not desired for construction purposes although they have their own unique material functions.
Hard rocks are used for heavy duty and durable constructions like dams and bridges.
learn more:
Metamorphic rocks brainly.com/question/869769
Sedimentary rocks brainly.com/question/9131992
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