<span>b. Representative electrons</span>
Firstly it is best to describe the shape and structure of an atom, an atom's system and structure is like of the solar planet, the heliocentric view where the sun is the neutrons and protons and the planets are the electrons. Moreover, the electrons are outside these neutrons and protons surrounding the entire system of its atomic structure. Its movement is like of a planet.
An energy level also known as electron shell, or just shell is a location around an atom where electrons with a specific energy value, or quantum number may be found.
Answer:
agricultural labor for physical protection
Explanation:
During the medieval ages, the serfs were the people who were the agricultural laborers. These laborers worked o the lands of the landowners. In return of the work they got legal protection. They received different and to run their persona needs and earn their livelihood. They were exposed to certain rules and restrictions that they were to follow. These laborers were not free and they worked for the protection of their rights.
The correct answer would be option C, Not an excessive incentive.
Research subjects will be given a basket of toys to use at their children's first visit that the children can take home. In assessing this proposal, the IRB needs to determine that the toys are not an excessive incentive.
Explanation:
IRB is an abbreviation of Institutional Review Board, which is responsible for taking care of the rights and welfare of the Subjects upon which a research is conducted. This administrative body don't allow any inhuman or unethical behavior to the subject during the research.
So in the given example, when recently admitted women were being taken as the subjects and were given a basket of toys for their children to take those toys to home, then Institutional Review Board needs to determine that giving toys to the children of criminal must not be taken as an excessive incentive by them or their families. They will need to review that those toys won't act as incentives for being in the prison.
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Answer:
Correct answers are
He made Athens the most powerful member.
He protected Athens from Spartan attacks.
Explanation:
First option is not correct as Athens dominated that alliance and didn't bother much about the rights of other members.
Second option is not correct as Athens never invaded Persia.
Third option is correct as Athens use this alliance to attack themselves from the attacks of Peloponnesian league that was led by Sparta.
Last option is also correct as Athens had the supreme authority in the alliance.
Answer: c. An agreeable message ; increases cheek muscles
Explanation:
When we agree with the message we are most likely to be happy and to smile as the result which will relax our cheeks muscles , one can even see the movement in our cheeks.
However if we don't agree with the message which may be sadning or distressing the muscles that get affected are our forehead and brow area because we are very likely to frown and the muscles in these areas get affected