Q: What is the term for the gas in smog that can damage plants? Choices: - dioxide - carbon - sulphur - ozone A:
ozone

Q: In what form do plants and animals store sugar for later use? Choices: - processing polysaccharides - management polysaccharides - carrying polysaccharides - storage polysaccharides A:
storage polysaccharides

Q: Mendeleev organized what basic units into rows and columns? Choices: - solutions - compounds - animals - elements A:
elements