If hitting a rock causes vibration, then hitting a rock causes what? Answer choices: - heat energy - erosion - energy - friction - flooding - squeeze - contamination - vibration
vibration

If melting means changing from a solid into a liquid by increasing temperature, then what is increased to cause something to change from a solid into a liquid? Answer choices: - Evaporation - water vapor - hydrogen - temperature - ice cubes - h2o - sweating - Water expanding
temperature

Q: If burning coal causes acid rain, then acid rain can be a result of:? Answer choices: - burning - citric acid - flow of electrons - fashion - acid wash - chemical changes - burning coal - Pollution
A: burning coal

Question: If viruses often infect something killed by antibiotics, then viruses often infect something killed by what? Answer choices: - Rocks - Antibiotics - radiation - Needle - Water - Pesticides - sun's heat - Cooking
Answer: Antibiotics

*Question*
If atape measure can be used to measure distance, then what does a tape measure do? Answer choices: - observe appearance - measure weight - measure density - measure distance - focusing a lens - objects that have mass - lowered energy cost - duplicate itself
**Answer**
measure distance

(Question)
If acompound which can donate a proton from burning coal and oil dissolving in water in the atmosphere causes a compound which can donate a proton rain, then what comes from burning coal and oil dissolving in water in the atmosphere? Answer choices: - Plant growth is reduced - A transportation fuel - Generating heat - harmful substances - DNA damage and mutations - A compound that donates proton - ozone depletion - Mutagenic chemicals
(Answer)
A compound that donates proton