If hand lenses or magnifying glasses are used to see small things to make them appear bigger, then what or or magnifying glasses are used to see small things to make them appear bigger? Answer choices: - mirrors - satellites - hand lenses - electricity - an image - sea urchins - barrel-shaped - squids
hand lenses

If lung cancer is most often caused by exposure to tar, then lung cancer is most often caused by exposure to? Answer choices: - DDT - UV - methane - tar - CFCs - vapor - SO2 - carbon dioxide
tar

If insects are in the largest phylum of invertebrates, then what are in the largest phylum of invertebrates? Answer choices: - insects - infected - bees - a fish - honeybees - parasites - barnacles - animals
insects