Answer:
The migration during the 20th century has been mostly from less-developed (poor) countries to more-developed countries.
Explanation:
A is correct because during the 20th century, with the migration policies being made much more friendly and open, the people from the less-developed countries where the living conditions were terrible, to the more-developed countries where they could have much better lives.
B is not correct because it is actually the opposite, where people from different religious beliefs than those of the people of the county of their choice, have migrated and made much more diverse societies.
C is not correct because such migration has not been recorded so far.
D is not correct because the people from more-developed countries usually only visit the less-developed countries as tourists, but very very rarely migrate to them as they are aware of the risks and bad living conditions.
Answer:
Both have similar elements in their core.
Venus and Earth are nearly the same size, have very similar masses, and have almost identical compositions.
Explanation:
Why the other answers are incorrect:
Both have a magnetic field.
This is incorrect because Venus lacks a magnetic field.
Both have only one satellite.
Earth has one moon, but Venus does not have any.
Both rotate on their axis at the same rate.
Each planet in the Solar System rotate at a different rate. Therefore, this answer choice is wrong.
The correct answer would be oceanic-continental plate boundary.
Answer: During the day, valley air heats rapidly and rises upslope. At night, mountain air cools quicker and moves downslope into the valley.
Explanation:
The correct statement about Mountain-Valley breezes is that during the day, the valley air heats rapidly and then rises upslope while at night, mountain air cools quicker and then moves downslope into the valley.
During the day, when the valley floor warms, it should be noted that the warm air will then rise up to the slopes of the mountains that are around its surrounding which brings about a valley breeze.
Then during the night, the denser cool air will then slides downward the slopes and then settle in the valley which then gives the mountain breeze.
Therefore, the correct option is A.
I think it’s true sorry if it’s not
