A water quality specialist in South Dakota notices local streams in a region have high salinity levels. The inland streams are n
ot connected to any wetland, only a local watershed from a mountain region.
Which of the following is a possible source of the extra salt in the stream?
- Ocean upstream
- Lake downstream
- Nearby fracking
- Pump jack drills
Which of the following is a possible source of the extra salt in the stream?
- Ocean upstream
- Lake downstream
- Nearby fracking
- Pump jack drills
1 answer:
Given what we know about the processes mentioned, we can confirm that a possible source for the extra salt in the stream is Nearby Fracking.
Fracking is a highly controversial process in which highly pressurized water is used for drilling. It is often used to mine natural gas and oil. The controversy lies within its high environmental cost.
The environmental cost factor lies in the use of <em><u>massive amounts of </u></em><em><u>water</u></em> and its further <em><u>contamination </u></em><em><u>of nearby </u></em><em><u>water sources</u></em> due to the chemicals released during this process.
This, coupled with the fact that the water source in question is stated to <em><u>not be connected to any form of </u></em><em><u>wetland</u></em> leads us to the conclusion that the most likely source of extra salt in the stream is nearby fracking.
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Answer:
The genotypes of the two parents: normal head shape (HH) and Bart head shape (hh)
The genotypes in the F1 generation= Hh
The phenotypes present in the F1 generation= All normal head shape
Explanation:
Let's assume that the allele "H" is responsible for the normal head shape while the allele "h" gives Bart head shape. According to the given information, both the parents are homozygous. The genotype of the parent with normal head shape would be "HH" while that of the one with Bart head shape would be "hh". Since the normal head shape is dominant, all the F1 hybrid progeny would exhibit "normal head shape".
