Answer:
Movement of people between places on a regular basis → cyclical migration
Study of population → demographics
average number of children a woman will have in her lifetime → fertility rate
the number of people who live in a square mile or kilometer → population density
people who leave their homelands seeking safety in a foreign country → refugees
Explanation:
Migration is the movement of people from from one place to another. A cyclical migration is a kind of movement that is a routine and are usually short.
Demographics is the study of population base on age , race, gender etc.
fertility rate is said to be the measure the number of life birth of a woman in a specific period of time . Fertility rate gives information on how fertile a woman is.
Population density is the number of people per unit area. It gives information on the population per geographical area.
Refugees are individual that have been forced to live their countries to seek refuge in another country as a result of violence or persecution.
The answer is Petersburg Volgograd
Answer:
The Tropics receive more direct sunlight, resulting in warmer climates. The Poles receive almost no direct sunlight, resulting in a colder climate.
Explanation:
The tropics and the poles are two totally different regions on Earth. The differences can be seen in pretty much everything, from climate conditions to soil, geography, biosphere, precipitation, human activity, etc. One of the most noticeable and most important differences between the two is definitely the angle at which the sunlight falls.
The tropics are the region that receives sunlight at direct or close to direct angle all year round. This means highly concentrated sunlight and warm or hot weather conditions all year round. The poles are the region that receives sunlight at the lowest angle, having it constantly for around half a year, and then lacking it for half a year. This means very dispersed sunlight which can not warm up the surface and air, so the weather conditions are very cold all year round.
Answer:
As San Francisco and other cities in the Bay Area commemorate the anniversary of the 1989 Loma Prieta earthquake, we are reminded once again of the need to get prepared for the next natural disaster. The 6.9 magnitude earthquake not only resulted in collapsed homes, displacement of residents, but it also was a terrifying reminder of the need to reinforce the structures we use every single day.
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