D probably Australian aboriginals were not exposed to these viruses and their body couldn’t fight it off
Answer:
<u>c. Laboratory experiments have a high degree of control and may create an artificial atmosphere.</u>
Explanation:
A limitation of laboratory experiments is that the environment in which the experiments take place, is very much calculated and controled. This means that it is artificial, and this wll affect the generalization of the findings considering a not cotroling environment such as a real environment.
Answer:
False
Explanation:
Physical Abuse is not only for children, it is for all people
Answer:
Not a single person.
Explanation:
In the essay "I, Pencil" by Leonard E. Read, the author says that though about one and one-half billion pencils are produced in US alone each year, he says that not a single person in the whole earth knows how to actually make a pencil.
The author says that the economy of the country could never be systematically planned when not even a single person possesses the skills to even make a pencil. The writer uses the word 'pencil' to represent the most simplest tool yet how no one actually has the skills to make one in the country.
That person is Andrew Mellon.
