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Alika [10]
3 years ago
12

A rural homeowner moves into an old house with an old septic tank. (Septic tanks are used to treat household sewage.) After a fe

w weeks, she notices smelly water
pooling in her yard near the septic tank. She decides to wait to see if the problem will go away. What two types of pollution are demonstrated in this real world example
Toxic
Sediment
Nutrient
Bacterial
Biology
1 answer:
nata0808 [166]3 years ago
6 0

Answer:

a) Toxic (gases)

d) Bacterial

Explanation:

Septic tanks are underground structures usually built with concrete or plastic in which wastewater is treated. These tanks are generally used in rural areas and are located near bathrooms and laundry rooms.

If a septic tank is working correctly, it should produce any unpleasing smell. However, when an individual perceives a certain strong bad smell it could be due to the presence of gases (low levels of hydrogen sulfide and high levels of carbon dioxide, and methane) and anaerobic microorganisms such as sulfur bacteria which also produce methane and, therefore, strong smell.

It all depends of what kind of bad smell is the person perceiving. For example, the smell of "rotten egg" is usually due to microbial pollution and gases. Although these gases are not toxic in low levels, they could become highly toxic. It is extremely important to pay attention to smell and give the appropriate mainteinance.

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M1V1=M2V2

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M1= 0.467 M

6 0
4 years ago
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hoa [83]

Answer:

A. esophagus

B. left artlium

C. stomach

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Explanation:

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3 years ago
Water is considered a _______ resource.
Tju [1.3M]

Answers/ Explanations:

- Water is considered a <u>'Natural'</u> resource (Fresh water is also considered a <u>'limited'</u> resource.

- Oil, coal, and natural gas are considered <u>'Non-renewable'</u> resources.

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4 0
3 years ago
Read 2 more answers
Part 1 - Pick one abiotic factor and change it dramatically. (Example: remove it completely or increase it A lot)
zubka84 [21]
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2. decrease heat will affect biotic factors, like animals, warmth.

Hope this helped :)
7 0
3 years ago
Place the following events in muscle contraction in the correct sequence from first to last. 1. ATP binds to myosin head. 2. Myo
sladkih [1.3K]

Answer:

The correct sequence of muscle contraction from first to last is given below

Explanation:

step 1  myosin head interacts with actin

step 2 ATP binds to myosin head

step 3  ATP is converted to ADP and Pi

step 4  ADP and pi are released from myosin

step 5  Myosin head pivots in the power stroke

step 6  Myosin head is cocked back.

7 0
3 years ago
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