Answer:
The mantle exists above the crust of the earth
I see I'm late but I believe it's A. , opposites attract. I'm taking the test right now lol
In my opinion, i think the first one is the best one since we're cutting down on paper wasted in mails when its better to do it online.
"paying bills online instead of sending paper through mail"
Atmospheric pressure is caused by the weight of the atmosphere pushing down on itself and on the surface below it.
Pressure is defined as the force acting on an object divided by the area upon witch the force is acting.
I think the answer should be the last one. Magnets attract magnets with unlike poles and repel magnets with like poles
