A mineral is a naturally occurring,inorganic, crystalline substance that aggregate to form rocks. Geologists separate minerals into classes based on their chemical composition. The different classes of minerals include halides, oxides, phosphates and sillicates. Rocks are usually classified based on the grouping and composition of minerals in rocks.
An organism is a living thing.
So the correct answer is C.
Answer:
This difference exists because of the Earth's slight elipsoid shape.
Explanation:
This difference exists because of the Earth's slight elipsoid shape.
Due to this reason, the measurement of a degree of longitude is given by the following formula.

In which
is the length in degrees at the Equator and La is the latitude(in degrees).