Q: Under which conditions do many bacteria carry out alcohol fermentation? Choices: - melting - enzymatic - photosynthesis - anaerobic A:
anaerobic

Q: What cycle vital to plants includes a process called denitrification? Choices: - carbon cycle - sedimentation cycle - photosynthesis - nitrogen cycle A:
nitrogen cycle

Q: What does oil do when mixed with water? Choices: - dissolves - precipitates - dissappears - forms droplets A:
forms droplets