Providing captions and transcripts for videos on your website is a way of ensuring what?.

Pollution from a factory that produces cleaning products is an_

Which leader was the first african american president at two different institutions for higher learning

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change