Answer:
Pull factors are the ones that attract migrants (as a strong economy), while push factors are the ones that drive migrants away (like war).
Explanation:
There are numerous different factors that make people migrate from one place to another, but all of them can be put into two broad groups, pull and push factors. The pull factors are factors that attract people to migrate in as these are the factors that offer a better life. The push factors, on the other side, are the factors that make people move away as these are the factors that make life harder.
An example of a pull factor is a strong economy. A strong economy means that the society is well developed and that job opportunities will be abundant, thus there is a chance of improving the economic status and having a better life. An example of a push factor is war. A situation where there is a war means that people feel unsafe and that they may end up losing their lives, or someone from their family and circle of friends. In order to avoid such a scenario, people move away, primarily looking for countries that offer safety.
Answer:
one plate slides under another, returning older crust to the mantle.
Unconfined aquifers more vulnerable to pollution from runoff and underground seepage than confined aquifers because as water seeps into the soil, contaminants on the ground surface may enter the unconfined aquifer.
<h3>What is Unconfined aquifers?</h3>
- Unconfined aquifers, sometimes known as "water table aquifers," are more susceptible to surface pollution contamination than confined aquifers.
- An aquifer with a water table, also known as an unconfined aquifer, has its upper water surface at atmospheric pressure, allowing it to rise and fall.
- Unconfined aquifers are found underneath a permeable layer of soil, whereas confined aquifers are covered by an impenetrable layer of rock or clay.
- Aquifers can be formed by a wide variety of sediments and rocks, including gravel, sandstone, conglomerates, and fractured limestone.
Learn more about Unconfined aquifers here:
brainly.com/question/14916917
#SPJ4
There ethnic was wavered after most of them were wiped out
Answer:
D. the other three are all true.
Explanation:
mark me as brainliest