Earthquakes: Environmental Science by Yinka Hollinger
https://docs.google.com/presentation/d/1uSwzT0aiP7JuLfkCkr6iMz28rTwxySkrfxt4vUwUjiE/edit#slide=id.p
Sla@Beeb
https://docs.google.com/presentation/d/1uSwzT0aiP7JuLfkCkr6iMz28rTwxySkrfxt4vUwUjiE/edit#slide=id.p