Across
- 2. process in which fungi like yeast, reproduce quickly and produces carbon dioxide. Carbon dioxide mixes with the dough or batter and increases its volume and makes it fluffy and soft.
- 4. process used for wastewater treatment.
- 5. used as fuel for production of energy.
- 6. chemicals produced by microorganisms,that kill or inhibit the growth of other harmful microorganisms.
Down
- 1. convert the dead remains of plants and animals to humus.
- 3. ability of an organism to resist an infection.