Answer:
The correct answer is c.) The bystander effect
Explanation:
In social pshychology, The bystander effect is a claim that individuals when they are in group, or surrounded by many people are less likely to help a victim in a situation of need, the greater the number of bystanders the less likely it is that one will provide help. In this case, Mr. Hughes decided not to do something or to help the swimmer exactly becasue of this, he figured out one of the other bystanders would provide the help required by the swimmer, therefore his reaction reflects very clearly the Bystander Effect.
Answer:
The galaxy is moving closer to us
Explanation:
When there is a decrease in the wavelength of light which is being observed then it means that the object and observer are getting closer to each other.
When there is an increase in the wavelength of light which is being observed then it means that the object and observer are getting farther apart.
This phenomenon is called the Doppler effect.
Orange has shorter wavelength than red so the wavelength is getting shorter.
Hence, the galaxy is moving closer to us.
Answer:
Increased population size
Explanation:
A population bottleneck can be defined as the decreased in the size of population which may occur due to disaster , environmental factors or activities carried out by humans which in turn leads to reduction in population size.
Therefore INCREASED POPULATION SIZE is an events which could not be caused by a population bottleneck due to the fact that increase in population size leads to increase in the numbers of individuals or people in which this number of people can only be increased in size rather than decreased in size when been compare to population bottle neck which dramatically reduces the size of a population.
