During solar flares, the amount of solar wind directed to Earth increases dramatically. When the solar wind reaches Earth, it can create auroras-streamers of reddish or greenish light in the sky.
Where are auroras most clearly visible?
A near the North and South Poles
B. in the tropics
C. in the Pacific Ocean
D. along the equator

An education expert is researching teaching methods and wishes to interview teachers from a particular school district. she randomly selects ten schools from the district and interviews all of the teachers at the selected schools. which type of sample did she use in this study? a)systematic sample b)probability sample c)stratified sample d)cluster sample

In a market economy, what does a producer mean when it asks, "is there a market for my products? is there a place where we can sell our products? " "ls our product being made more cheaply overseas? " will consumers need and want to buy our products? " will the government support demand for our products? "

What is affirmative action as a social program intended to accomplish? do you think it has been successful? what are some specific examples that you can offer to support your answer? this is for my multicultural studies class i need asap !