If carbon may be stored in sandstone for millions of years, then what element may be stored in sandstone for millions of years? Answer choices: - copper - calcium - carbon - chemicals - heat - iron - rock - fossils
carbon

If gardening and painting supplies can cause harm to humans, then what can cause harm to humans? Answer choices: - Something with a head, thorax, and abdomen - oxygen spills - smallest agents of disease - gardening & painting supplies - DNA damage and mutations - influenza orthomyxoviruses - digestion - respiration
gardening & painting supplies

If the digestive system breaks meat into nutrients for the body, then what does the digestive system break into nutrients for the body? Answer choices: - fats - paper - lipids - meat - apples - corn - music - the colon
meat