Fact 1: Hitting an object causes the particles in that object to vibrate. Fact 2: Rock particles vibrate back and forth. Given the two facts above, answer the question "Hitting a rock causes what?" with the following options: - heat energy - erosion - energy - friction - flooding - squeeze - contamination - vibration
vibration

Fact 1: Melting means changing from a solid into a liquid by adding heat energy. Fact 2: All temperatures are measures of heat energy. Given the two facts above, answer the question "what is increased to cause something to change from a solid into a liquid?" with the following options: - Evaporation - water vapor - hydrogen - temperature - ice cubes - h2o - sweating - Water expanding
temperature

Q: Fact 1: The emission of sulfur dioxide causes acid rain. Fact 2: Sulfur in the coal becomes sulfur dioxide when burned. Given the two facts above, answer the question "Acid rain can be a result of:" with the following options: - burning - citric acid - flow of electrons - fashion - acid wash - chemical changes - burning coal - Pollution
A: burning coal

Question: Fact 1: Viruses often infect bacteria. Fact 2: Antibiotics kill the good bacteria along with the bad bacteria. Given the two facts above, answer the question "Viruses often infect something killed by what?" with the following options: - Rocks - Antibiotics - radiation - Needle - Water - Pesticides - sun's heat - Cooking
Answer: Antibiotics

*Question*
Fact 1: Atape measure is used to measure length. Fact 2: Lengths A length is a measure of distance. Given the two facts above, answer the question "What does a tape measure do?" with the following options: - observe appearance - measure weight - measure density - measure distance - focusing a lens - objects that have mass - lowered energy cost - duplicate itself
**Answer**
measure distance

(Question)
Fact 1: Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain. Fact 2: An acid is defined as a compound which can donate a proton . Given the two facts above, answer the question "What comes from burning coal and oil dissolving in water in the atmosphere?" with the following options: - 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