What are cultures of west and central africa based on?

Ms.ringer asked her class "what are the favorite colors of the students in our school" which student correctly deceives ms.ringer's question

Rainbow trout is non- native to the united states. however this species is breeding with the native gula yltrout acientistrecently observed that the hola trout were becoming exitinct what is the cause of their extinction

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.