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Vlada [557]
3 years ago
11

____________________ is any rock sufficiently enriched in one or more minerals to be mined profitably

Social Studies
1 answer:
Luden [163]3 years ago
4 0

Answer: Ore

Explanation:

Ore is an aggregate of one or more minerals within a rock that can be mined, and processed in commercial quantity for profit.

There are only about a 100 ore minerals, a few example includes limonite, magnetite, Zinc, haematite, siderite, this ore are major sources of chalcocite, iron, chalcopyrite, gold, diamond, bornite, etc.

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Random <u>selection </u>ensures that a sample is representative of the population. random <u>assignment </u>ensures that participant characteristics are equivalent across groups.

<h3>What is a representative sample?</h3>

Representative samples are little amounts or components that are a part of a bigger group or organization. It shares the same characteristics as the bigger population it represents.

Consider a company in Germany's Bavaria that is going to launch a new service or product. It would be difficult for the company to poll every Bavarian to determine how they felt about the launch. As an alternative, researchers can compile a small sample from various locations in Bavaria that will serve as a representative sample of the local populace. After that, a survey will be given to the respondents to gather their comments on the good or service. A "representative sample" is the term used to describe this selection of Bavarian individuals.

To learn more about representative sample from given link

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Straighterline the lowest or most basic needs in maslow's classification system are called <u>"biological"</u> needs.


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