Answer:
create the heat-reflective layer that keeps the Earth at a livable temperature
Explanation:
Answer:
1) Liquid hydrogen has the lowest density of any liquid.
2) Hydrogen is the chemical element with the symbol H.
3) Hydrogen is the most abundant chemical substance in the universe, constituting roughly 75% of all baryonic mass.
4) Atomic mass: 1.00784 u
5) Atomic number: 1
Answer:
An educated guess before doing an experiment
The mutation will become more common in offspring and increase the genetic variability in the gene pool.