1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GaryK [48]
3 years ago
7

What caused the change in water quality in Flint, Michigan?

Biology
2 answers:
Furkat [3]3 years ago
6 0

Answer:

1.The city was taken off the Detroit water system to save money

Explanation:

The Flint water crisis is a public health crisis that started in 2014, after the drinking water source for the city of Flint, Michigan was changed.

Flint officials explore whether the city can save money by switching from its current provider, the Detroit Water and Sewerage Department (DWSD). City and state officials weigh an alternative: Flint could build its own pipeline to connect to the Karegnondi Water Authority (KWA). That option was projected to save the region $200 million over 25 years, according to City Council meeting minutes.

Until Flint's pipeline connecting to the KWA is operational, the city needs an interim source of water and turns to the Flint River, which was also its main water source until the 1960s.  Flint River water starts flowing to the city on April 25.

Officials did not immediately treat the Flint River water to ensure it didn't cause corrosion in the pipes — instead, they took  a "wait-and-see" approach.

Some Flint residents complain about the smell and color of the new water, which is 70 percent harder than its previous water source.

E. coli and total coliform bacteria are detected in Flint's water, prompting multiple advisories for residents to boil their water.

On October 13, General Motors says it will stop using Flint River water, fearing corrosion in its machines.

In January 2015,  Flint is found to be in violation of the Safe Drinking Water Act because of the level of total trihalomethanes, or TTHM, in the water. TTHM are disinfection byproducts that occur when chlorine interacts with organic matter in the water. Some types are possible carcinogens for humans.

In Feburary 25, tests show high lead levels In homes.

In April,  State Agency notifies EPA that Flint did not implement corrosion controls.

In September 24,  study finds elevated lead levels in children.

In October 16, Flint switch back to Detroit Water Supply.

Nikitich [7]3 years ago
3 0

Answer:

The city was taken off the Detroit water system to save money.

You might be interested in
Which of the following coordinate and control immune response?
qwelly [4]
I think it’s T lymphocytes?
It says: T lymphocytes attack antigens directly and help control the immune response. They also release chemicals, which control the entire immune system....
5 0
3 years ago
Read 2 more answers
Organisms use different types of adaptations to aid in their survival. many different types of animals hibernate throughout the
zalisa [80]

Option (A) Torpor is the correct answer

Organisms that undergo hibernation have the ability to slow down their metabolism so as to lower the core temperature. This process is known as Torpor.

<h3>Why is torpor important for organisms undergoing hibernation?</h3>

Torpor is a state in animals where they lower all their metabolic activities and bodily functions so as to keep the body temperature low.

It is done by the animals to conserve resources in conditions where scarcity of food is there.

Some birds undergo torpor to conserve fat in the body.

Some animals use this technique of torpor to survive competition with other species.

These organisms come back to normal physiology when the conditions become favorable.

Read more about torpor here:

brainly.com/question/10514311

#SPJ4

6 0
2 years ago
Which statements describe the movement of blood through the heart? Check all that apply. 
vlada-n [284]

Answer:

The correct answer would be Atria push blood into the ventricles and Ventricles push blood out of the heart.

In humans, four chambered heart is present with two atria and two ventricles.

Deoxygenated blood from all over the body is passed into the right atrium through vena cava (superior and inferior).

Simultaneously, oxygenated blood from the lungs is passed into the left atrium of the heart with the help of pulmonary vein.

Both the atria contract at the same time to drain their blood into respective ventricles.

The ventricles undergo relaxation while receiving blood.

The valves present between the atria and ventricles (tricuspid and bicuspid valve) ensures that the blood flows in one way direction only. They shut down as the ventricles contract and produce the sound "lub".

The ventricles contract simultaneously to pump blood out of the heart. The right ventricle pumps deoxygenated blood into pulmonary artery which takes the blood to the lungs for oxygenation.

The left ventricle passes the oxygenated blood through aorta to all the parts of the body.

The pulmonary and aortic valves prevent the back flow of blood and shut at the same time which creates second sound called as "dub".

8 0
3 years ago
Read 2 more answers
According to the cdc, tooth decay affects more than ________ of u.s. children aged 2 to 5.
melomori [17]

According to the CDC, tooth decay affects more than one-fourth of U.S. children aged 2 to 5.Tooth decay is the damage of the structure of the tooth which is caused by acids that are produced when sugar is being broken down by plaque bacteria in the mouth. Tooth decay is the primary cause of tooth loss in children in the United States.







8 0
4 years ago
Pangaea was a ... that formed near the end of the Paleozoic era.
Allisa [31]

Answer:

TRUE

Explanation:

6 0
3 years ago
Other questions:
  • When glucose levels in the blood increase after eating a meal, the pancreas secretes insulin to lower blood glucose levels back
    6·1 answer
  • Answer the following questions:
    9·1 answer
  • What is the best definition of a virus
    15·1 answer
  • The ends of the linear chromosomes of eukaryotes cannot be replicated by DNA polymerase. This problem is overcome through the us
    9·1 answer
  • Differentiate between plant cell and animal cell
    9·1 answer
  • Amanda is eating a chicken breast, and wonders how many chromosomes are in each somatic cell of the unfortunate bird. She looks
    12·2 answers
  • Tell the Structure of the Earth. Full explanation please
    6·1 answer
  • When Avery and his colleagues kill the S-strain bacteria and mix the remains with the Australian bacteria, the R-strain remain h
    14·1 answer
  • a student is investigating cellular transport. what will most likely occur when the student places a cell that is 95% water insi
    14·1 answer
  • Describe the outer core: Include the thickness (depth), what it is made of, whether it is solid or liquid, and one fact about it
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!