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Len [333]
3 years ago
5

A chunk of ice whose temperature is -20c is added to an insulated cup filled with water at oc what happens in the cup

Social Studies
1 answer:
ivolga24 [154]3 years ago
3 0
If you do this, some of the water will get frozen around the chunk of ice which would increase the size and the mass of the chunk of ice. That's because of the conditions that you presented in the question.
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Why did native American have a high death rate from European disease ​
Greeley [361]

Answer:

There were an estimated 18 million Native Americans living north of Mexico at the beginning of the European invasion. Prior to the arrival of the Europeans, American Indians were remarkably free of serious diseases. People did not often die from diseases. As the European explorers and colonists began to arrive, this changed and the consequences were disastrous for Native American people. The death tolls from the newly introduced European diseases often reached 80-90 percent. Entire groups of people vanished before the tidal wave of disease.  

Explanation:

The diseases brought to this continent by the Europeans included bubonic plague, chicken pox, pneumonic plague, cholera, diphtheria, influenza, measles, scarlet fever, smallpox, typhus, tuberculosis, and whooping cough. The diseases introduced in the Americas by the Europeans were crowd diseases: that is, individuals who have once contracted the disease and survived become immune to the disease. In a small population, the disease will become extinct. Measles, for instance, requires a population of about 300,000 to survive. If the population size drops below this threshold, the virus can cause illness and death, but after one epidemic, the virus itself dies out.

Another important factor in the European diseases was the presence of domesticated animals. The source of many of the infections was the domesticated animals which lived in close proximity with the humans.

Overall, hundreds of thousands of Indians died of European diseases during the first two centuries following contact. In terms of death tolls, smallpox killed the greatest number of Indians, followed by measles, influenza, and bubonic plague.

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3 years ago
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Which statement best describes most tundra animals?
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stocky bodies with thick fur and feathers

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Betty is the assistant store manager at a trendy clothing store. The store hires lots of seasonal employees. Betty has little re
Dima020 [189]

Answer: Theory X

Explanation: Theory X is the motivational theory done by psychologist that determine the people belonging to theory X group usually tend to have low ambition, not interested in taking responsibility and low aspirations . People in this field have intense supervision and low acceptance towards change.

According to the question, Betty has Theory X -related management style as she is not sure about the skills of the hired people. She does believes that hired employees will come to office on time due to the firing policy. This shows her low ambition and responsibility towards her job.

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2 years ago
In the 1970s, a 13-year-old girl was found locked up in a room, strapped to a potty chair. Since she had grown up in a world wit
olasank [31]

Answer:

A case study

Explanation:

Case study: In psychology, the term case study refers to one of the research methods which is considered as a descriptive research that is being used by various researchers or experimenters to get an in-depth examination of a group, person, or phenomenon. A case study involves significantly different approaches including psychometric tests, personal interviews, archival records, and direct-observation.

In the question above, the given research method is called a case study.

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