When might a teacher recommend using Wikipedia?

A. for a research paper

B. For a detailed class presentation

C. As an unquestionable source

D. to gather basic information

He want to contact the red cross/red crescent because they are the main non profit organization that deals with disasters around the world 

Hope this shshf

Answer is b)eutrophication occurs when excess nutrients are present in aquatic ecosystems, resulting in the increased production of plant life and the subsequent decrease in the oxygen levels of the watereutrophication occurs when there are excess nutrients in a body of water. this results in plants having more food and reproducing  more, sometimes leading to more aquatic animal life as well. ultimately, this can reduce the oxygen level in the ecosystem. 

The cause of the intolerable acts was king george was furious about the boston tea party and closed the harbor and took away their self government until all the tea was paid for. the effect was these acts just stirred up more british hating feelings. now people in all 13 colonies were angry. b.