*Question*
If riding a bike does not cause carbon monoxide, then what doesn't riding a bike cause? Answer choices: - Allergies - harmful substances - Decrease bodily water - Greenhouse gasses - carbon monoxide - global warming - Dehydration - chemical changes
**Answer**
carbon monoxide

*Question*
If bamboo grows roots down into the soil to absorb water and minerals, then what grows roots down into the soil to absorb water and minerals? Answer choices: - bamboo - potatoes - the Sun - water - ice - Oak - burrs - Trees
**Answer**
bamboo

*Question*
If genes are molecules that contain a single protein, then what are molecules that contain a single protein? Answer choices: - genes - animals - alleles - swea - SO2 - small - CO 2 - ovaries
**Answer**
genes

*Question*
If pollen consists of tiny grains that are the sperm of plants, then pollen consists of tiny grains of what part of plants? Answer choices: - flowers - swea - seeds - white - sperm - embryos - cacti - CO 2
**Answer**
sperm