*Question*
If microorganisms cause food to mold, then what happens when microorganisms get on food? Answer choices: - It tastes better - Animal survival - Dehydration - hydrate their cells - Nothing, it's normal - It gets moldy - hyperthyroidism - The food is safe to eat
**Answer**
It gets moldy

*Question*
If neurons die quickly if their oxygen supply is cut off, then what die quickly if their oxygen supply is cut off? Answer choices: - neurons - insects - viruses - parasites - rocks - humans - dirt - mammals
**Answer**
neurons

*Question*
If products made from petroleum are a big contributor to landfill waste, then products made from what are a big contributor to landfill waste? Answer choices: - burning coal - acetic acid - tin - hydrocarbons - brass - Pesticides - petroleum - recyclables
**Answer**
petroleum

*Question*
If sand is formed by mechanical weathering, then what is formed by mechanical weathering? Answer choices: - planets - coral - calcium - ore - sand - soils - tube - peat
**Answer**
sand