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Fantom [35]
2 years ago
11

Why does the land around a once active coal mine remain barren?

Biology
1 answer:
Temka [501]2 years ago
8 0

Hello!!

The answer is A. Toxic nitrous oxides were releassed into the soil killing all plants

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Polysaccharides have _____sugar(s); disaccharides have _____sugar(s); monosaccharides have _____sugar(s).
enyata [817]
Polysaccharides have 1 sugar
disaccharides have 2 sugars
monosaccharides have a chain of sugars
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3 years ago
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What is noice pullotion. <br>pls po pasagot ;23 point po ​
luda_lava [24]

Answer:

<h2>Noise pollution, also known as environmental noise or sound pollution, is the propagation of noise with ranging impacts on the activity of human or animal life, most of them harmful to a degree. The source of outdoor noise worldwide is mainly caused by machines, transport, and propagation systems</h2>

Explanation:

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4 0
2 years ago
Which of the following may not have been possible without the presence of ozone in the atmosphere?
Basile [38]

Answer: Option A) Oxygen may not have been able to accumulate in the atmosphere

Explanation:

Ozone, O3, is an allotrope of oxygen having three atoms in the molecule instead of the usual two present in molecular oxygen. Ozone is generated from oxygen, and is the only form in which oxygen can exist in the atmosphere.

5 0
2 years ago
24. Name two types of pathways that help a body maintain homeostasis, and an example of each.
gavmur [86]

Answer:

See the answer below

Explanation:

Homeostasis refers to the maintenance of relatively constant internal body processes. This is done in two ways

  • <em>Negative feedbacks</em>
  • <em>Positive feedbacks</em>

Negative feedback returns body processes back to normal after the process has been breached. An example is when the body temperature becomes too high or too low. At too high temperature, vasodilation of the skin's blood vessels occurs and more heat is lost to the surrounding from the skin, sweat is also produced by sweat glands and evaporation of the seat causes cooling. At too low temperature, vasoconstriction occurs leading to the conservation of more heat. The muscles also shake to generate more body heat

Positive feedback ensures that a breach of body processes reaches completion. An example is when a pregnant woman starts laboring. The increase in the amount of oxytocin in the blood leads to the contraction of the uterus consequently leading to the opening of the cervix. More and more oxytocin leads to more frequent and stronger contraction of the uterus untill the baby is born.

4 0
2 years ago
Outline the history of epidemic disease in the new world including the carriers and types explain how diseases were spread to th
weqwewe [10]

Answer:

Epidemic diseases in the New World started when Cortez went to conquer the Aztecs and the Inca and he ended up spreading disease killing thousands. They were spread by the rise of agriculture and through trade. The carriers of these diseases were bird, humans, and animals. Diseases included syphilis, tuberculosis, flu, and typhoid fever.

Explanation: I got a 100% on Edge.

Sorry I'm late :(

Brainliest Maybe?

8 0
3 years ago
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