Paraphrase is to rephrase a sentence based on your originality.
Answer:
Global changes are caused mostly by humans.
Driving cars instead of walking, burning fuels for cooking and heating, manufacturing, transporting, and much more are human activates that have caused global warming/changes over time...
I think it means if you hurt my friends, I will kill you.
Answer:
Cars are helpful because they are just like property, and I doubt you want your house to be gone randomly. Another reason they are helpful is because it helps with transportation. You can go to the mall, stores, and more. If we didn't have cars, we would use all of our energy trying to get to places. Cars are also cool.
Explanation: