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Aleksandr [31]
4 years ago
12

What are three disadvantages of making and using plastic?

Biology
1 answer:
AURORKA [14]4 years ago
3 0
Plastic has many disadvantages, including environmental, choking and chemical hazards. Not only is plastic non-biodegradable, meaning it will not break down in landfills even after hundreds of years, it can also clog waterways and contaminate wildlife habitats. Plastic poses a danger to animals if they ingest it or become entangled. <span>Additionally, chemicals are used to both produce and recycle plastic, a practice that poses environmental hazards as well. Recently under public scrutiny, a chemical called BPA is believed to cause hormonal problems in both males and females, especially those who are prepubescent. Lastly, young children may suffocate or choke on plastic.</span>
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Almost immediately after injection, you find yourself swept into a good-sized chamber, the _(1)_. However, you do not stop in th
Pepsi [2]

Answer:

Almost immediately after injection, you find yourself swept into a good-sized chamber, the left atrium. However, you do not stop in this chamber, but continue to plunge downward into a larger chamber below. You land with a large splash and examine your surroundings. All about you are huge white cords, hanging limply from two flaps of endothelial tissue far above you. You report that you are sitting in the left ventricle chamber of the heart, seeing the flaps of the mitral valve above you. The valve is open and its anchoring cords, the chordae tendineae, are lax. Since this valve is open, you conclude that the heart is in the systole/contraction phase of the cardiac cycle.

Explanation:

Once the oxygenated blood enters the heart through the pulmonary vein, it goes to the left atrium. From there, it goes down to the left ventricle passing through the mitral valve, also known as the bicuspid valve. This valve prevents blood's backflow when the heart contracts, allowing the blood's flow from the ventricle to the aorta.

The chordae tendineae, also known as tendinous cords, are in the mitral and the tricuspid valve. They are cords that are attached to the valve and the heart walls. They are lax during atrial systole, and with the help of blood pressure, they allow the valve to open and welcome the blood into the left ventricle. The tendinous cords are tense during ventricle systole preventing the valve from opening and causing a backflow from the ventricle to the atrium.

8 0
3 years ago
Describe the weathering process that has occurred to cause a dome to look the way it does now?
Katen [24]

Answer:

The rain, wind, and possibly hail where's down the dome rock causing chucks of the dome fall off.

Explanation: The rain softens the rock while the wind blow debris on the dome and (possibly) hail knocks the chucks of rock off the dome. (If there is no hail then eventually the rain and wind will make the rock fall off the dome)

<h2>Hope this helps!</h2>
7 0
3 years ago
This responds to messages from the communication system and changes its level
alina1380 [7]

Answer:

sensors, control center, communication system, target

Explanation:

4 0
3 years ago
Lyell's theory that geological processes occurred over time led Darwin to formulate which of these concepts? There is no correla
Vsevolod [243]
I believe the correct answer is the final option - <span>If Earth formations can change over time, it is possible that even life on earth could change over millions of years.
Given that Darwin proposed his ideas about the origins of species and evolution, this is the only possible option to choose. It is impossible that life doesn't change at all, and millions of years are a long time to implement those changes. So it is only natural that organisms can change as much as the Earth can.
</span>
3 0
3 years ago
Which of the following is a nonrenewable resource? a. geothermal b. solar c. nuclear d. biomass Please select the best answer fr
MrMuchimi

Answer:

The answer to this is D.

6 0
3 years ago
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