The answer to you question is A. Affirm
Triangular sail developed by Arab or Indian merchants which was eventually adopted by European ship owners to improve the maneuverability of their ships. It could catch crosswinds and be used to drive a ship along its chosen course. The captains of caravels and galleons used this type of sail in conjunction with several other kinds of sails to cross the Atlantic and Pacific Oceans.
Answer:
It is known as pluralistic ignorance.
Explanation:
Pluralistic ignorance occurs in social situations when an individual does not feel free to express their opinion and makes a wrong inference of what their peers think, so they end up accepting the option they believe the group would choose, even if they disagree.
An example would be: Karla is on the bus, and a person sits next to her, she watches the woman and thinks that looks like a kind person and would like to talk with her for a while, but nobody talks with other people on the bus so avoid talking to her.
The spectator effect is an example of pluralistic ignorance; when an emergency occurs, the larger the group that observed the emergency situation, the less likely someone will help. The individual in the group may think that it would not be right to help, or that he/she should not help because surely another person would help.
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They are held together by electromagnetic force, and their nuclei are held together by the nuclear strong force.
B. Specialize in this is because certain nations have different climates and different types of agriculture and livestock or even metals and rock productions than other nations do.
