Answer:
population , regions , river
Answer: The battle of Coral Sea was a victory for the USA (United states of America) because it forced the Japanese into calling off their attack on New Guinea.
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The given statement is true that the Urban and rural sociologists help in the planning of parks and transportation.
<h3>What is a sociologist?</h3>
A sociologist is defined as a person who develop, structure, and operative or run of human society. Sociology can analyse society with a broad variety of directions.
The main function of the Sociologist is to search or investigate the mode in which a society is formed that close to the structures of the power.
Urban and rural sociologist help in the planning of parks and transportation as it involves the human skills and helps in giving the directions.
Therefore, the given statement is true.
Learn more about the sociologist, refer to:
brainly.com/question/606515
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.
