Nuclear forces, according to my textbooks! Hope this helps!
X, answer is X, good luck now, pls answer my question pls pls.
Yes, because the envelope can be a important document- so therefore it can be considered "confidential".
The one with higher air pressure is Warm Air. The reason why is because when you boil water, the water always makes the lid rise. This is because Warm Air has more activity in its atoms and molecules, so it is moving around more, which in turn means that there is more pressure.
Hope I helped. :)
