Bacteria can cause people to become ill, and properly and frequently washing hands when handling food helps eliminate bacteria. Given these facts, what is one way to help prevent illness among the following options: - shower less often - many antibiotics - antibiotics - breathe less - properly wash hands - Exfoliation - avoid water on hands - Thyroid-stimulating hormone
properly wash hands

Ice wedging is when ice causes rocks to crack by expanding in openings, and freezing water expands cracking and breaking the rocks. Given these facts, ice wedging is when freezing water expands and what among the following options: - a delta - breaks rocks - closes schools - freezes gas - destroys toys - erosion - solid, liquid, gas - near the shoreline
breaks rocks

An animal requires air for survival, and air is mostly nitrogen and oxygen. Given these facts, which of the following gases does an animal need to survive among the following options: - oxygen - blood - carbon monoxide - food - glycogen - helium - H20 - warm
oxygen