Question

1. Distinguish between the following.
1 Crust and core
Slal and sima
3. Rocks and minerals
4. Intrusive and extrusive rock​

Answer 1

Answer:

the uppermost layer of the earth known as crust and the innermost layer of the girl known as core.

Answer 2

Answer:

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is a naturally occurring aggregate of minerals, and certain non-mineral materials such as fossils and glass. Just as minerals are the building blocks of rocks, rocks in turn are the natural building blocks of the Earth's LITHOSPHERE (crust and mantle down to a depth of about 100 km), ASTHENOSPHERE (although this layer, in the depth range from about 100 to 250 km, is partially molten), MESOSPHERE (mantle in the depth range from about 250 to 2900 km), and even part of the CORE (while the outer core is molten, the inner core is solid). Most rocks now exposed at the surface of the Earth formed in or on continental or oceanic crust. Many such rocks, formed beneath the surface and now exposed at the surface, were delivered to the surface from great depths in the crust and in rare cases from the underlying mantle. There are two general ways that rocks come to be exposed at the surface:

Formation at the surface (e.g., crystallization of lava, precipitation of calcite or dolomite from sea water)

Formation below the surface, followed by tectonic uplift and removal of the overlying material by erosion

There are three major classes of rocks, IGNEOUS, SEDIMENTARY, and METAMORPHIC, with the following attributes:

IGNEOUS ROCKS form by crystallization from molten or partially material, called MAGMA. Magma comes mainly from two places where it is formed, (1) in the asthenosphere and (2) in the base of the crust above subducting lithosphere at a convergent plate boundary. There are two

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