<span>Because Athens assumed an ever-more oppressive role, demanding tribute from league members.</span>
Social learning and behavioral learning are parts of cognitive learning theories if that’s what you’re asking.
Answer:
Statement that is true about electromagnetic and mechanical waves is:
Option B: Mechanical waves must travel through a medium, but electromagnetic waves do not require a medium to travel.
Explanation:
'Electromagnetic' waves do not need any medium to travel whereas 'mechanical waves' need a medium or matter for transmission. Electromagnetic waves are produced by the 'vibrations' of the charged particles. They can even travel in vacuum.
On the contrary, mechanical waves are caused by the 'wave amplitude'. Mechanical wave can travel in solid, liquid and gas and are considered to be periodic disturbance.
Thus, Option B is the most statement apt explaining the difference between electromagnetic and mechanical waves.
The correct answer is C. The speaker is the head of the majority party. They are the presiding officer of the house of representatives. They are also in charge of many of the administrative decisions. Despite all of this power they still have no vote in the house.
George Washington 1732-99 was commander in the chief of the continental army during the American revolutionary war and served two terms as the first U.S. president from 1789 10 1797.
