I only need the answers to 5, 6, and 7

How would i answer this for an exam?

What was the great rift valley formed by

Directions conduct research to collect information and data in order to write a well-informed argument essay responding to the following prompt: do you believe your local power company is doing enough to reduce dependence on nonrenewable energy sources? why or why not? remember that your argument essay should contain: a claim supporting evidence connected to your claim an acknowledgement of counterclaim(s) a conclusion after writing your rough draft, reread it and edit it for spelling, grammar, and clarity.