Which of the following statements related to fracking (hydraulic fracturing) is correct? A. The fracking process does not increase the efficiency and well productivity. B. The fracking process uses very little liquid, and only uses sand. C. The most commonly used liquid for fracking is water with a number of chemicals added that are toxic or cancerogenic. D. If the fracking liquid is returned to the surface, it is already purified by the soil and does not need further treatment. E. Fracking for natural gas is considered a sustainable energy technology due to its high efficiency.

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A:

Q: What is the best method to filter the precipitate from it's reaction mixture? a Gravity filtering…

A: A product is precipitated from a reaction mixture and later collected by the process of filtration.

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Q: Q1

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Q: Which type(s) of medium would be used in each scenario?a. isolating the growth of Streptococcus…

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Q: micro-organisms are the most resistant to heat sterilization?

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Q: growth

A:

Q: The culture medium that contains penicillin is a type of ________media.

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Q: The Allium Test is a common test in environmental science. What are some disadvantages to this test?

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Q: 2. Which of the following is not a quality control method in an environmental sample analysis? a.…

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Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.