Question 1:
How are sedimentary rocks, igneous rocks and metamorphic rocks formed? Explain.
Answer:
Igneous rocks are formed when magma from volcano eruptions cools when it rises to the surface. Sedimentary rocks are formed from various rock fragmentation processes such as weathering and erosion. It is then carried by the river to the sea and deposited there. Metamorphic rocks are the rocks formed when pressure and heat acts on igneous and sedimentary rocks.
How are sedimentary rocks, igneous rocks and metamorphic rocks formed? Explain.
Answer:
Igneous rocks are formed when magma from volcano eruptions cools when it rises to the surface. Sedimentary rocks are formed from various rock fragmentation processes such as weathering and erosion. It is then carried by the river to the sea and deposited there. Metamorphic rocks are the rocks formed when pressure and heat acts on igneous and sedimentary rocks.
Question 2:
Why are fossils not found in igneous rocks?
Answer:
Igneous rocks are formed from cooled magma. Magma has a high temperature and no living things can live in it.
Therefore, there are no fossils found in igneous rocks.
Why are fossils not found in igneous rocks?
Answer:
Igneous rocks are formed from cooled magma. Magma has a high temperature and no living things can live in it.
Therefore, there are no fossils found in igneous rocks.
Question 3:
Why are metamorphic rocks harder than igneous rocks and sedimentary rocks?
Answer:
Metamorphic rocks are harder than rocks because they are formed from high pressure and temperature.
Why are metamorphic rocks harder than igneous rocks and sedimentary rocks?
Answer:
Metamorphic rocks are harder than rocks because they are formed from high pressure and temperature.