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anastassius [24]
3 years ago
6

A national survey revealed that _____ percent of 18- to 24-year-olds had created a profile on a social networking site and _____

percent of them visited a social networking site several times a day.
Social Studies
1 answer:
sattari [20]3 years ago
5 0
The first one is 81 percent and the second one is 31 percent.
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levacccp [35]

Answer:

placebo control group

Explanation:

In order to determine that a drug has any effect in the body participants of a study are divided into two groups a group which actually receives the treatment and the other group receives a fake treatment. The participants are unaware of which group they belong to.

The fake treatment group is called the placebo control group. If the drug is actually effective then the placebo control group should not shoe the same effects that the treatment group is showing.

Here, the capsule received by group 2 looks like the capsule with the Ginkgo Biloba herb. The participants of group 2 should not show an increased blood flow to the brain. The participants of group 1 should show an increased blood flow to the brain. This would prove that the Ginkgo Biloba increases blood flow to the brain.

7 0
3 years ago
Can wind energy be a major source of power?
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m_a_m_a [10]

Answer:

Psychology- study of individual behavior

Sociology-study of society

Anthropology-study of man

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Political science-study of government

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Explanation:

Psychology is the science that studies human mind and behaviour. As such it was linked correctly to its definition above. Likewise we have matched other fields of knowledge to their respective definitions. Please follow answer in order.

6 0
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What is conserved in physical changes?<br>A. shape <br>B. energy <br>C. mass<br>D. density
WINSTONCH [101]
<h2>Answer:</h2>

The answer is:

C. Mass

Explanation:

The physical changes of a substance are those that change its physical properties. Physical properties include attributes such as color, gloss, malleability, shape, texture, or condition.

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What was most important about the Battle of the Bulge?
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2 years ago
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