Answer:
The equation is already balanced. There's an equal number of materials on each side of the equation.
When you burn paper you are chemically altering it so that is the correct answer. When you do all the other choices all of the components stay the same. Just because it changes shapes doesn't mean it'll change chemically toom
Answer:
Kelvin, Celsius, Fahrenheit
Explanation:
See my other answer for an explanation.
Answer:
Having as wide a range of organisms as possible.
Hope it helps! :)