Question

biomass comes from living matter. how is the energy in biomass released for human use? it is frozen, then thawed. it is crushed. it is burned. it is turned into water.

Explanation:

To determine how energy in biomass is released for human use, we analyze each option:

• Freezing and thawing biomass does not release its energy; this process is not related to energy extraction from biomass.
• Crushing biomass only breaks it into smaller pieces and does not release the energy stored in it.
• Biomass contains chemical energy in the form of organic matter. When biomass is burned, the chemical energy is converted into heat energy (and sometimes light energy), which can be used for various purposes like heating, generating electricity, etc. This is a common method to utilize the energy in biomass.
• Biomass cannot be turned into water as a means to release energy. Water is a different substance, and this process is not a valid way to extract energy from biomass.

Answer:

C. It is burned.