Standard air pressure at sea level is the equivalent weight of a column of air miles tall and one inch square.

Africans learned what the europeans wanted them to learn. instead of learning about african history and current information that could and would them they learned solely what europe wanted them to. and not everyone received the same education, some received better and others none.

Do you have a picture for this problem?

The correct answer is:   [b]:   "physical systems" .