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2 years ago

How did the use of groundwater change from preindustrial times to industrial times?

2 answers:

4 0

The answer to this question is letter b. Groundwater use increased from preindustrial times to industrial times. Some industries used more groundwater because of the nature of their businesses.

jek_recluse [69]2 years ago

3 0

The correct option is B.

Ground water refers to those water sources that are found underneath the ground in rocks, sand and soils. The quantity of ground water that were utilized during the pre-industrial period is very small compare to the amount that is utilized during the industrial time. And this has led to a significant decrease in the amount of ground water available today. Other factors that had led to shortage in ground water include pollution and lack of precipitation.

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A prospective groom, who is healthy, has a sister with cystic fibrosis (CF), an autosomal recessive disease. Their parents are n

son4ous [18]

Answer:

Explanation:

From the given information:

Since the parent are normal; Let assume that their trait is Pp

The affected sister will be recessive in nature, so the trait will be pp

Now, the husband who is the groom will be a carrier with a probability of 2/3 since her sister is affected.

Also, the wife will be carrying a heterozygous trait since she is normal as well.

However, using Hardy-Weinberg assumption:

$q^2 = \dfrac{1}{2500}= 0.0004$

$q = \sqrt{0.0004}$

q = 0.02

Recall that:

$p+q =1 \\ p = 1 - q \\p = 1 - 0.02 \\p = 0.98\\$

Thus, $p^2 = (0.98)^2$

$p^2 = 0.9604$

$2pq = 2 \times 0.98 \times 0.022$

2pq = 0.0392

Finally, the required probability that there will be an affected offspring amongst the family is:

$= \dfrac{1}{4} \times \dfrac{2}{3} \times 0.0392$

$= \dfrac{1}{153}$

3 0

2 years ago

Which of the following are the 3 factors of Sustainability?

tatiyna

Solar Energy and Biodiversity are the 3 factors of Sustainability.

Answer:

B. Solar energy

D. Biodiversity

Explanation:

Sustainable sources of energy are renewable sources of energy. Sustainable energy is the availability of energy to such an extent that it addresses the issues of the present without trading off the capacity of future ages to address their issues.

Sustainable energy incorporates all sustainable energy sources, for instance, hydroelectricity (electricity from water), biomass, geothermal (electricity from the Earth), wind (using windmill), wave, tidal and sun oriented energies. Renewable energy is the process but sustainable energy is our belief or mindset.

3 0

2 years ago

You take a human smooth muscle cell and block the release of calcium from the sarcoplasmic reticulum. What effect does that have

Murljashka [212]

Answer:

The correct option is E) Contraction still occurs because Ca2+ can enter the cell directly through Ca2+ channels in the plasma membrane and bind to calmodulin.

Usually, the calcium ions are released from the sarcoplasmic reticulum of a cell during a muscle contraction, but if those are blocked, the contractions is an cell can still arise through the calcium ions which are present in the cell membrane of a cell.

3 0

2 years ago

Which of the following is true?

eduard

I think D I’m not sure

3 0

2 years ago

Wind erosion can be reduced by ___.

Zepler [3.9K]

Answer is - planting trees!

4 0

2 years ago

Read 2 more answers