DescriptionPopulation density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently applied to living organisms, most of the time to humans. It is a key geographical term.
The axe is an example of a simple machine, as it is a type of wedge<span>, or dual inclined plane. </span>
Answer:
white for the first one and brown for the secound one
Explanation:
An engineering cycle is meant to assess the environmental impacts in relation to economic impacts on a product. The assessment is the whole life cycle of a product consisting of production, use phase and end of life. It's important because it helps mold the standard of living for generations to come and be sustained indefinitely. It protects against negative environmental factors but also reduces the cost of production for business', also.
The best way to identify a mineral is the color of the mineral. The color of the minerals with different impurities is different. The pink color of the rose quartz and the gray color of the smoky quartz indicates that they contain different impurities. The impurities are the main factor behind the color of any mineral.
Hence, the correct answer is 'Color is the best way to identify a mineral'.
