Answer:
30%
Explanation:
I don't know how to explain but I learnt this yesterday
Option B:
Global climate is complex, so changes in global climate are hard to predict.
Answer:
It's true.
Explanation:
In sub-energy level : number of orbitals

The heat of fusion for water is the amount of energy needed for water to :
c.melt
A bond between two atoms that SHARE electrons