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lisov135 [29]
3 years ago
8

What is the major source of air pollution today?

Biology
2 answers:
erma4kov [3.2K]3 years ago
6 0
Big trucks and all motor generated machines or automobile vehicles are the major cause for air pollution. Smoke coming from the pipes that go down to the engine and come up through the pipes burst into he air, making air unhealthy and more dangerous in the big cities. 
sveta [45]3 years ago
5 0
Oil and gas, that type of thing I think
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Explanation:

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Make an argument for a "critical period" in language acquisition.
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Ever heard that kids are naturals when it comes to learning a language? Or maybe you know someone who gets easily discouraged from attending a second language course because they say they’re too old. Whatever you might have heard about this, whether you can remember or not, I’m positive it’s related to one of the most famous linguistics debates, which has been around since the 1960s.
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What type of statement would the following be considered? "I'm not a Math person because I'm not smart enough."
rjkz [21]
<h2>Fixed Mindset </h2>

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3 years ago
The part of the eye that prevent light from reflecting internally and is heavily vascularized to deliver blood to the retina:___
Ne4ueva [31]

The part of the eye that prevent light from reflecting internally and is heavily vascularized to deliver blood to the retina: choroid.

<h3>What is choroid?</h3>

The choroid is highly vascularized to provide blood to the retina and contains dark pigmentation to stop light from reflecting inside. Anteriorly, the choroid, ciliary body, and iris are all joined.. The ciliary body muscles regulate the lens's thickness. The iris acts as a diaphragm, changing the pupil's aperture at its center. This regulates how much light is allowed to enter the retina. In strong light, the iris' muscle fibers constrict the pupil to accommodate close vision; in low light, they enlarge it to accommodate far vision. Each individual's iris is a different color.

To know more about choroid visit:
brainly.com/question/799280

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