Answer:
you press their profile pic, and it should take you to there profile, then theres two options on the right that say add a friend and write a message
Explanation:
Reduced dependence on nonrenewable resources
Our dependence on fossil fuels has actually increased dramatically as more and more people own vehicles. Vehicles are becoming more efficient, but with so many on the road at once, we're burning through our nonrenewable resources fast. It may not happen on our lifetimes, but we'll run out eventually and unless we find a better source of energy by then, we'll be in a bad situation.
The fourth amendment. Google helps a ton, and gives you all of the amendments. :)