Answer:
D. There will always be waste produced that can be used for energy.
Explanation:
Biomass energy is a renewable energy source because its does not have limited supply. We can always grow trees and crops, and waste will always exist.
10.11 moles
formula
n=m/Mr
Paper Chromatography
Investigators use paper chromatography to distinguish the different brands of ink pens used by the suspects and compare it to the forged cheque.
A
