Answer:
Never smoke near a place where hydrogen is generated or being used. Remove all possible sources of flame and sparks. Hydrogen should only be generated and used in a well ventilated out door area. Precautions must be taken to remove all possibilities of fire or explosion.
Answer:
a. physical features
Explanation:
google
{and my biology teacher is <u><em>awesome</em></u> ❌}
No it's not a proper solution to the world's problems
Answer:
the molecules slow down and get more dense
Explanation:
you seem to slow down when its cold too...