Answer:
Aliens are the creatures that come from different planet. If we have to describe ourselves to an "alien", we are going to explain our physique, mental situations and our social behavior to them.
Explanation:
The probability is the same at all three hospitals.
Answer:
to understand natural landform changes and potential hazards for populations
Answer: Public Good
Explanation:
In medieval Europe an important technological advance was the use of the padded horse collar for plowing.
Once this idea was thought of, other people used it. This illustrates that knowledge is generally a public good.
