*Question*
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
**Answer**
gardening & painting supplies

*Question*
If earth's orbital motion around the sun is key to the leaves of many trees changing colors, then what factor is instrumental behind the change of leaf colors during the year? Answer choices: - organisms and their habitat - global warming - Earth orbiting the Sun - Solar energy - scattered light - Greenhouse gases - Varying light output from sun - Moon orbiting the Earth
**Answer**
Earth orbiting the Sun

*Question*
If sexual reproduction creates evolution, then what creates evolution? Answer choices: - animals with backbones - coded genes - heterotrophs - Sexual reproduction - Geology - haploid plants - Organs - Technology
**Answer**
Sexual reproduction

*Question*
If carbon in organic compounds are passed through the food web from herbivores to carnivores, then carbon in organic compounds are passed through the food web from what? Answer choices: - it helps plants in growing - Burning fuel and air - members of their own species - people to dogs - herbivores to carnivores - carnivores to plants - passenger pigeons - predators to prey
**Answer**
herbivores to carnivores