The number of protons and neutrons are used to determine the: (C1) T (H4) M (A1) C (H2) A (F4) S

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

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How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.