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DerKrebs [107]
3 years ago
6

AtDescribe any four ways of purifying drinking water.ne​

Social Studies
2 answers:
frosja888 [35]3 years ago
6 0

Answer:

boiling

reverse osmosis

water chlorination

distillation

natita [175]3 years ago
4 0

Answer:

Boiling. This is a reliable way to purify water. ...

Use of Iodine solution, tablets or crystals. This is an effective and more convenient method. ...

Use chlorine drops. Chlorine has the ability to kill bacteria in water. ...

Use water filter. ...

Use Ultraviolet Light.

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HELP ME....PLEASE!!!
valentina_108 [34]

Answer:

1.) 36 alien civilizations could communicate with us.

2.) The nearest alien could be on Mars which is 54.6 million kilometers

away.

3.) No I don't agree. There could be millions of alien civilisations out there that we haven't found because space is so big.

3 0
3 years ago
A student reported that a limp stalk of celery became crisp when placed in ice water if a hypothesis is shown to answer several
Bezzdna [24]
Thank you for posting your question here. It can be considered to be consistent with the given facts. As you know, an hypothesis, much less a theory, is never proven. It can be shown to be consistent with given observations. As new observations are collected, the given hypothesis may have to be modified.

If the celery became crisp when it was soaked in ice water, then clearly that the water has rehydrated the celery is a reasonable hypothesis. But did it have to be ice cold water? Would room temperature water work? What about boiling water?

And thus most of the time, the success of an hypothesis leads to the design of new experiments to test and expand the original hypothesis.

7 0
2 years ago
Xác định lỗi của câu và sửa lỗi những câu sau "Hà Nội và Thành phố Hồ Chí Minh được ngành hàng không thế giới đánh giá là một tr
Aleksandr [31]

Answer:

could you put it in English please

4 0
3 years ago
Read 2 more answers
Why do you think Washington didn’t want permanent alliances with other nations?
Ivanshal [37]

Answer:

A

Explanation:

this is what i read from a search “Nations have no permanent friends or allies, they only have permanent interests.” because a year they could be friends then the next they be enemies

5 0
3 years ago
Read 2 more answers
4. Why did South Carolina secede from the Union?
ad-work [718]

Answer:

When the ordinance was adopted on December 20, 1860, South Carolina became the first slave state in the south to declare that it had seceded from the United States. ... The declaration also claims that secession was declared as a result of the refusal of free states to enforce the Fugitive Slave Acts.

Explanation:

3 0
3 years ago
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