General Knowledge - Chemistry - Discussion
Discussion Forum : Chemistry - Section 1 (Q.No. 8)
8.
The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock's called
Discussion:
18 comments Page 1 of 2.
Ankita said:
1 decade ago
Is one of the three main rock types, the others being sedimentary and metamorphic rock. Igneous rock is formed through the cooling and solidification of magma or lava. Igneous rock may form with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks. This magma can be derived from partial melts of pre-existing rocks in either a planet's mantle or crust.
Kulkarni Prakash said:
1 decade ago
Can fossils survive at high temperatures prevailing in igneous rocks? it can be sedimentary rocks only in which fossils be preserved.
Prahimni said:
1 decade ago
Igneous rocks can be the answer because they are obtained from the molten magma.
ANKIT SINGH said:
1 decade ago
The right answer is igneous rock because igneous rock are under the volcanic eruption.
Kanhaiya said:
1 decade ago
Please explain why not sedimentary rock?
Saumya shukla said:
1 decade ago
Please explain volcanic eruption.
Amey Kasav said:
1 decade ago
Oh! It was at utmost deep crust so came out in form of it.
Abdijabaar bashierhassan said:
1 decade ago
The oldest rocks in the earth's crust were once molten, and came from deep inside the earth. The molten rock, called magma, spewed out in volcanic eruptions during the earth;s early life and solidified into hard rock's called Igneous rocks.
Nikhil said:
1 decade ago
Please explain about granite.
Mantosh Prasad said:
9 years ago
Yes, C is the correct answer because igneous rock is obtained from molten magma.
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