What could be a possible explanation that Africans started gained independence from their European colonizers in the 1950's?

Which effect does an increase in a country’s literacy rate have on the people who live there?

Which two islands are closest to the mainland asia?

Eter lives in a beautiful region. peter and other residents of his region use water from the river that flows through their region. recently, mark industries decided to set up their chemical plant near that river. peter realized that the waste from the chemical plant would pollute the river. he decided to seek a legal ordinance that would restrict the use of land near that river for specific use only. which type of zoning will peter and his region?