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Murrr4er [49]
3 years ago
6

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

Biology
1 answer:
kaheart [24]3 years ago
7 0

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.

To learn more visit:

brainly.com/question/2157664?referrer=searchResults

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The angle of Earth's tilt has changed throughout Earth's history and is still changing today. If Earth's tilt were to decrease
olganol [36]

Answer:

The world climate would drastically change.

Explanation:

  • First off, both poles would have rapid expansion, with the freezing of more water near the poles.
  • Many species of trees and plants would die out in certain areas, since they tend to be in their ideal locations, so the change in climate will make the northern parts of many habitats destroyed.
  • Deserts would expand and the average temperature would rise.
  • Also, many animals would also die out, because of the change in their environments.
  • Conifers would shift southward, causing many forests / parts of forests to turn into wastelands, causing the earth's oxygen production to decrease.
8 0
3 years ago
A type of cellular transport is shown. Which description best identifies this type of cellular transport? Your answer: A.Osmosis
madreJ [45]

Answer:

B.Active transport, because energy is being used to move molecules against the concentration gradient

Explanation:

Substances move in and out of living cells through various transport means. Some substances move passively (without energy) while others move actively (with energy). Active transport of substances involves the movement of molecules against the concentration gradient.

Active transport moves against concentration gradient in the sense that the movement occurs from a region which is less concentrated to one which is more concentrated, hence, energy input in form of ATP is required for such transport to occur. This is the case of the cellular transport in the diagram. Therefore, it is an ACTIVE TRANSPORT because energy input (ATP) is required.

Note, Osmosis and facilitated diffusion are types of passive transport that requires no energy to occur.

7 0
3 years ago
Macy has hired 400 store sanyas. If each Santa sees 125 children a day for 30 days, how many children are seen by mac's santa
Pachacha [2.7K]
So here let's first find the amount of children every santa, in total, sees in one day. So if there are 400 santas, and each sees 125 children, you can just multiply 400 by 125 to see how many children all the Santas see in one day.

400 * 125 = 50,000

Now, since there are 30 days which all the santas see 50,000 children, you can then multiply 30 by the 50,000 children to get how many children are seen by Macy's Santas in a month.

30 * 50,000 = 1,500,000

So 1,500,000 children are seen by Macy's Santas.
7 0
3 years ago
A freshwater fish egg that contains 1% solute lives in a freshwater environment that also contains 1% solute. The freshwater sol
djverab [1.8K]

Answer:

It is Isotonic to the fish egg solution

Explanation:

It is Isotonic because Isotonic is a solution that has the same solute concentration with another solution I.e the amount of solute in one solution is the same with the other. This slow the free flow of solutes in equal part through the semipermeable membrane from one solution to the other.

3 0
3 years ago
(03.01 MC)
yan [13]
1. The answer is Telophase.
This is the last step of mitosis, during which the sister chromatids reach opposite poles. The small nuclear vesicles in the cell begin t reform around the group of chromosomes at each poles. Mitosis is a very important part of cell division because it is the process by which the parent cell gives its DNA to its two daughter cells.

2. The correct answer  is 4. The cell would not be able to grow any further
Body cells divide by the process of mitosis; a process in which a body cells undergoes division tow yield two diploid daughter cells, the process enhances growth and development as the cell increase in number by multiplying themselves. 

3. The correct answer Telophase II;
In prophase II, the nuclear envelop breaks down the spindle apparatus forms. The nuclear envelope forms around each set of chromosomes and cytokinesis occurs, producing four daughter cells, each with haploid set of chromosomes. 


4. The answer is 4. its body cells would have 36 chromosomes and its gametes would have 18 chromosomes. The somatic cells or the body cells are cells that have diploid (two pairs of chromosome) number, while the gametes are formed from the process of meiosis and contains haploid number of chromosomes.

5. The best answer is ; meiosis ; it increases genetic variation, which helps ensure the species will survive.  Meiosis is a type of cell division in which a cell (germ-line cells), where a cell divides to yield four daughter cells which are haploid; Meaning they have half the number of chromosomes as the parent cell. 

6. The answer is 50 percent. If the dominant allele is Y and the recessive allele; Therefore; the heterozygous will be Yy and the homozygous green color will be yy. 
Thus; A cross between heterozygous Yy and the green recessive yy will yield; 50 percent heterozygous and also half homozygous recessive. 

7. The correct answer is that One parent was heterozygous for eye color and the other was homozygous with red eyes. 
An organism can be homozygous dominant, if it carries two copies of the same dominant allele, or homozygous recessive, if it carries two copies of the same recessive allele. Heterozygous on the other hand, means that the organisms has two different alleles of a gene.

8. The correct answer is that the children will all have type AB blood. Both A and B alleles are dominant over O. as a result, individuals who have an AO genotype will have an A phenotype. The A and B alleles are codominant. When two alleles for a trait are equally expressed with neither being recessive or dominant, it creates codominance.

9. I believe the disease inheritance pattern described above by the cart shows Sex linked recessive inheritance pattern and in a cross between two heterozygous individuals there is a 50 percent chance for the second child born to be affected.
 
10. The answer for the question is 50 % percent.
I think that the infection design that is described above is a sex linked recessive legacy design and in a cross between two heterozygous individuals, there will be a half or 50 percent probability or possibility for the second child to be influenced.



8 0
3 years ago
Read 2 more answers
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