If exposure to water can cause erosion, then what causes erosion of soil? Answer choices: - Cars - coal - force - streams - water - rivers - mines - swea
water

If plastic slows the transfer of electricity, then plastic slows the transfer of what? Answer choices: - genetic material - electricity - clouds - energy - heat energy - sunlight - reduced heat - force
electricity

Q: If ozone is made of oxygen, then what is ozone made of? Answer choices: - oxygen - gas - dangerous - Energy - nitrogen - emissions - radiation - hydrogen
A: oxygen

Question: If viruses have similar membranes, then what have similar membranes? Answer choices: - PDAs - humans - viruses - crocodiles - animals - sharks - fur seals - insects
Answer: viruses

*Question*
If if a car tire is kicked then force is exerted on it, then what has force exerted on it when kicked? Answer choices: - gravity - density - feet - car tire - Sand dollars - volume - vehicles - some mammals
**Answer**
car tire

Q: If when a parasite produces memory cells, active immunity results, then what creates active immunity from a parasite? Answer choices: - Cooking - memory cells - alpacas - peachleaf willow - Allergies - mammals - an organism's body - animals
A: memory cells