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Feliz [49]
4 years ago
8

Which of the following statements about mining is true?

Biology
2 answers:
ella [17]4 years ago
6 0

Answer: d). Mining allows useful minerals to be extracted from the Earth.

Explanation:

Mining is a process of extraction of useful minerals from the surface, subsurface and deep regions of the earth which are of economic importance. The mining involves the formation of a huge crator on the land and underwater regions which takes long time to recover. It exerts a drastic ecological impact that is it destroys the habitat of plants and animals. The soil of the mining site becomes infertile.

On the basis of above information, d. Mining allows useful minerals to be extracted from the Earth is the correct option.

nika2105 [10]4 years ago
3 0
The answer is D. Mining allows useful minerals to be extracted from the Earth.
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A scientist helps a colleague do a better experiment by:
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Answer:

B. Offering advice about how best to perform a standard procedure.

Explanation:

Helping others can be in different ways, be it helping out or by giving encouraging words or advice. But in all aspects of help, there is always a positive outcome if help is given in the right way and at the right time. And it is also how one person lifts another.

A scientist can help a colleague out by offering advice and telling the person how to best perform a standard procedure. This will help the colleague do better in the experiment and also help ensure that the right things are done and the efforts are successful. The other options are all negative in their 'approach' which will only hinder the colleague in his/her works.

Thus, the correct answer is option B.

7 0
3 years ago
2. Which of the following is not considered an
Andreas93 [3]

Answer:

a. an oak leaf

Explanation:

3 0
3 years ago
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Describe maximum parsimony.
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Maximum Thrift is a method / philosophy that considers the shortest tree (in number of transformation steps) the best hypothesis about the phylogenetic relationship of a given set of terminals. Transformation step is the cost attributed to the change of character state in a given branch of the tree, be it the change from one nucleotide base to another, amino acids, or the color of an animal's iris. The fewer transformations, the shorter the tree, and therefore the more parsimonious.  In this method, what programs do is to investigate as many alternative topologies as possible (or all if their array has less than 25 terminals; see more details below) given their character array. Each will be measured, and the shorter (optimal) trees will be retained as the most parsimonious result.

7 0
3 years ago
Can environment and heredity impact your personal health
vovangra [49]

Answer: Most common diseases are a result of both your genes and your environment. Your environment can include personal choices, such as what foods you eat and how much you exercise, and external factors, such as stress, clean water, and air quality.

Explanation:

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3 years ago
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A one liter jar is filled with water right to the top. A rock is then dropped in the jar and 600 mL of water is displaced (pushe
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The rock will only displace the same amount of water that the rock's volume is.


1mL = 1cm^3


400mL = 400cm^3.


7 0
4 years ago
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