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Buồn ngủ
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Lê Thị Khánh Linh
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Tomioka Giyuu
20 tháng 12 2020 lúc 17:33

Yes, i do. No, becase drink it everydat not good for health

 

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๖ACE✪ĤĨệP ĎĨệÚ ๖ۣۜ
21 tháng 12 2020 lúc 8:18

Yes ,I do.No because it contains too much sugar

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Ko biết đặt tên gì cho l...
21 tháng 12 2020 lúc 19:56

no, i don't:v No, because in milktea has lots of sugar and energy. If you drink it everyday, you will get fat and also it not good for your health. Thi tốt nha bé:3

 

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Lê Thị Khánh Linh
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ng van ong minh
22 tháng 12 2020 lúc 21:31

I think we should 2 liters of water a day because some people they are working hard so provide water is very important for them or if we drink too much we can get many the sick of health problems

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nguyễn anh thư
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Phạm Nguyễn Khôi Anh
8 tháng 3 2021 lúc 20:10

đề bài là gì hả cậu

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Hân Tổng
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Hân Tổng
4 tháng 10 2020 lúc 16:25

giúp đỡ mình nhé!

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Lê Trang
4 tháng 10 2020 lúc 16:48

đề là gì vậy?

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ĐỖ HỒNG ANH
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ĐỖ HỒNG ANH
18 tháng 12 2018 lúc 18:18

Help me , please

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Hà An Trần
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Dân Chơi Đất Bắc=))))
5 tháng 4 2022 lúc 18:00

We should go to the bed early every day

There is a post office near hear ?

Children should drink milk every day

There is a swimming pool near there ?

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Trâm Bảo
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Trâm Bảo
23 tháng 12 2021 lúc 8:41

mình cần gấp ạ

 

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vũ đăng khoa
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Nguyen
26 tháng 5 2019 lúc 10:50

1.

Water is uniquely vulnerable to pollution. Known as a “universal solvent,” water is able to dissolve more substances than any other liquid on earth. It’s the reason we have Kool-Aid and brilliant blue waterfalls. It’s also why water is so easily polluted. Toxic substances from farms, towns, and factories readily dissolve into and mix with it, causing water pollution.

Categories of Water Pollution

Groundwater

When rain falls and seeps deep into the earth, filling the cracks, crevices, and porous spaces of an aquifer (basically an underground storehouse of water), it becomes groundwater—one of our least visible but most important natural resources. Nearly 40 percent of Americans rely on groundwater, pumped to the earth’s surface, for drinking water. For some folks in rural areas, it’s their only freshwater source. Groundwater gets polluted when contaminants—from pesticides and fertilizers to waste leached from landfills and septic systems—make their way into an aquifer, rendering it unsafe for human use. Ridding groundwater of contaminants can be difficult to impossible, as well as costly. Once polluted, an aquifer may be unusable for decades, or even thousands of years. Groundwater can also spread contamination far from the original polluting source as it seeps into streams, lakes, and oceans.

Surface water

Covering about 70 percent of the earth, surface water is what fills our oceans, lakes, rivers, and all those other blue bits on the world map. Surface water from freshwater sources (that is, from sources other than the ocean) accounts for more than 60 percentof the water delivered to American homes. But a significant pool of that water is in peril. According to the most recent surveys on national water quality from the U.S. Environmental Protection Agency, nearly half of our rivers and streams and more than one-third of our lakes are polluted and unfit for swimming, fishing, and drinking. Nutrient pollution, which includes nitrates and phosphates, is the leading type of contamination in these freshwater sources. While plants and animals need these nutrients to grow, they have become a major pollutant due to farm waste and fertilizer runoff. Municipal and industrial waste discharges contribute their fair share of toxins as well. There’s also all the random junk that industry and individuals dump directly into waterways.

Don't let the Trump administration pollute our drinking water TAKE ACTION

Ocean water

Eighty percent of ocean pollution (also called marine pollution) originates on land—whether along the coast or far inland. Contaminants such as chemicals, nutrients, and heavy metals are carried from farms, factories, and cities by streams and rivers into our bays and estuaries; from there they travel out to sea. Meanwhile, marine debris—particularly plastic—is blown in by the wind or washed in via storm drains and sewers. Our seas are also sometimes spoiled by oil spills and leaks—big and small—and are consistently soaking up carbon pollution from the air. The ocean absorbs as much as a quarter of man-made carbon emissions.

Point source

When contamination originates from a single source, it’s called point source pollution. Examples include wastewater (also called effluent) discharged legally or illegally by a manufacturer, oil refinery, or wastewater treatment facility, as well as contamination from leaking septic systems, chemical and oil spills, and illegal dumping. The EPA regulates point source pollution by establishing limits on what can be discharged by a facility directly into a body of water. While point source pollution originates from a specific place, it can affect miles of waterways and ocean.

Nonpoint source

Nonpoint source pollution is contamination derived from diffuse sources. These may include agricultural or stormwater runoff or debris blown into waterways from land. Nonpoint source pollution is the leading cause of water pollution in U.S. waters, but it’s difficult to regulate, since there’s no single, identifiable culprit.

Transboundary

It goes without saying that water pollution can’t be contained by a line on a map. Transboundary pollution is the result of contaminated water from one country spilling into the waters of another. Contamination can result from a disaster—like an oil spill—or the slow, downriver creep of industrial, agricultural, or municipal discharge.

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