Answer:
the negative effects are sometimes referred to as "brain drain". The notion of the brain drain is largely unsupported in the academic literature. According to economist Michael Clemens, it has not been shown that restrictions on high-skill emigration reduce shortages in the countries of origin.
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Erosion is the process by which the surface of the Earth gets worn down. Erosion can be caused by natural elements such as wind and glacial ice. But anyone who has ever seen a picture of the Grand Canyon knows that nothing beats the slow steady movement of water when it comes to changing the Earth.
Answer:
x-20=140
x=140+20
x=160
I think this is correct answer
Oh okay, so do you have any more info?