petroleum is a awesome thing that can sometimes harm us, but not always.
yes.
Two major sources of energy on Earth are fossil fuels (like coal, oil, and natural gas) which are derived from ancient organic matter, and renewable energy sources (like solar, wind, and hydroelectric power) which are replenished naturally and do not contribute to carbon emissions.
It's not that it's impossible to frown with petroleum jelly in your mouth, but rather that the slippery texture makes it difficult to form facial expressions. The jelly can coat the lips and mouth, making it challenging to move them in a way that produces a frown. Additionally, the act of trying to frown while managing the slippery substance may lead to laughter or surprise, further preventing a frown.