When should students begin researching and applying for colleges?

What is the rationale for government provision of education? -not all incomes are equal, but everyone has the right to education regardless of wealth. -potential students consider only their personal benefits gained from education, but the rest of society benefits, too. -no education would be provided in the absence of government provision because everyone would consume it without paying. -the cost of providing education for the entire public is too large. -the government can provide education at a much lower cost than the private sector.

98 points! include an answer and in advance!

Why are radio observatories located in valleys far away from urban centers? a. to shield them from electromagnetic interference b. to avoid sound pollution c. to avoid disturbing people living in the city d. to shield them from water vapor