Answer:
The United States leads the world with over 260 billion short tons of recoverable coal reserves—28% of total global reserves and 50% more than Russia, which possesses the world's second largest reserves. so the answer would be 28%
Explanation:
Mostly in my opinion I think it’s the secound one
Pressure does not affect the voltage produced in a voltaic cell.
Answer:
physical
Explanation:
no chemical reaction occurs
<span>lower than the boiling point of water
</span>
