A way in which science has improved a societal problem.A. contaminated water being purified
B. pathogens becoming resistant to antibiotics
C. bacteria contaminating food
D. unknown diseases appearing in some areas

Answers

Answer 1

Answer: A way in which science has improved a societal problem is
Contaminated water being purified
because science has invented many new techniques to purify water by chlorination or some other methods
so correct option is A
hope it helps

Answer 2

Answer:

Answer:

contaminated water being purified

Explanation:

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If you were a doctor, and a lab technician told you that the results of a patient’s lab results were Gram-positive, what antibiotics would you prescribe for the patient? Why?

Answers

Any broad spectrum antibiotics can be used against bacterial infection, but beta-lactams like penicillin, amoxicillin and cephalosporin as well as macrolides are more effective againts gram-positive bacteria.

All life on earth can be classified into how many kingdoms? 1 or 2 3 or 4 5 or 6 7 or 8

Answers

All life on earth can be classified into five of six kingdoms. The Six Kingdoms are Plants, Animals, Protists, Fungi, Archaebacteria, Eubacteria. Kingdoms are divided into categories called phyla, each phylum is divided into classes, each class into orders, each order into families, each family into genera, and each genus into species.

In the 1970's, what element wasremoved as an additive from
gasoline?
A. copper
B. zinc
C. palladium
D. lead

Answers

Finally, in 1972 the U.S. Environmental Protection Agency announced that leaded gasoline would be phased out.

What is Gasoline?

Petroleum-derived combination of flammable, volatile liquid hydrocarbons used as fuel for internal combustion engines; often spelled gasolene, gas, or petrol.

Additionally, it serves as a fat and oil solvent. Because of its high energy of combustion and ability to mix easily with air in a carburetor, gasoline—originally a byproduct of the petroleum industry, with kerosene being the main product—became the favored fuel for automobiles.

Not specifically to combat lead poisoning but because lead was known to interfere with new smog-reducing catalytic converters that from 1975 would be built into new cars.

Therefore, Finally, in 1972 the U.S. Environmental Protection Agency announced that leaded gasoline would be phased out.

To learn more about Gasoline, refer to the link:

brainly.com/question/29991915

#SPJ2

Answer:

According to 1988

the lead phase out in united state of American

A company makes a $5 profit on each non-faulty product it sells. Approximately 2% of the products manufactured are faulty, with no way to discover which ones are faulty before delivery. If replacement-and-repair costs for the faulty products are $100 each, what is the profit per item?

Answers

Answer:

$2.9 is the profit per item.

Step-by-step explanation:

we have given information as below:

there are total 2% items which are faulty

That means 98% are non-faulty.

Since, he has to pay $100 on faulty items that means loss he is facing is $.02\cdot 100=$2$

Now, he is getting profit of $5 on non-faulty items that means $.98\cdot 5=4.90$

Net profit= profit - loss on repairing the items =4.90-2=2.9

Hence, $2.9 is the net profit per item.

98 % items are non faulty.
2% items are faulty.

Let us assume the company sold 100 items in total.Out of which 2 were faulty.
So the company earned a profit = 98 x 5
= $ 490
The cost of faulty items = $ 200
So after replacing the profit = $490 - 200
= $ 290
So, The profit for each item would be = 290 / 100 = $ 2.90

in 1668 who conducted an experiment with meat and flies that disproved the idea of life arisingfrom non-livingmaterial

Answers

It was Louis Pasteur who did the experiment.

Which of the following best compares the cells produced from mitosis to those produced during meiosis? (1 point) Mitosis produces genetically different haploid cells, while meiosis produces genetically identical diploid cells. Mitosis produces genetically identical diploid cells, while meiosis produces genetically different haploid cells. Mitosis produces genetically different diploid cells, while meiosis produces genetically identical haploid cells. Mitosis produces genetically identical haploid cells, while meiosis produces genetically different diploid cells.

Answers

Answer:

Mitosis produces genetically identical diploid cells, while meiosis produces genetically different haploid cells.

Explanation:

Mitosis is a method of cell division by which one divides into two identical daughter cells. The chromosome number does not change after division. If mitosis occurs in diploid cell, the resultant daughter cells would be diploid and genetically identical. In meiosis, the cell divides into four daughter cells and chromosome in them is reduced to half. Thus, after meiosis diploid cell divides into haploid cells. These haploid cells are genetically different due to the exchange of chromosome segments between non-sister chromatids of a homologous chromosomes (crossing over).

Answer:

the answer is B

Mitosis produces genetically identical diploid cells, while meiosis produces genetically different haploid cells.

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