Answer:
The specific gravity of minerals will vary because of the presence of impurities in the minerals structure.
Explanation:
The specific gravity or relative density of a substance is a measure of the ratio of the density of a substance to that of the density of a reference substance, in this case, water is the reference substance.
Specific gravity measures how much heavier as substance is relative to water. Therefore, the specific gravity of a mineral is a measure of how much heavier it compared to the weight to an equal amount of water. The specific gravity of water is 1.0. If a mineral has a specific gravity of 4.5, it means that it is 4.5 times heavier than water. Different minerals have different specific gravities. Most minerals with metallic luster have high specific gravities and are known as heavy minerals. Some have average weights while some minerals are light minerals.
The specific gravity of minerals will vary because of the presence of impurities in the minerals structure. If a light mineral is present as an impurity in a heavy mineral, the specific gravity of that mineral will be less than the pure mineral and vice versa.
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Answer:
D.) citizens have the right to choose weather or not they whish to vote
<span>There
was development of super continent Gondwana after Pannotia broke up. This led
to a largest number of creatures evolving such as algae and the armored
arthropods like trilobites. This period was referred to as Cambrian period in
the first Paleozoic era.</span>
The development of New Orleans was hindered historically because of it's geographical position. It is surrounded by the Bayou, rivers, higher ground, and all this made it more difficult for things to develop in times where technology was not as developed.
