Heating a liquid can be used to identify that liquid 's boiling point, and heat is caused by vibrations of the atoms and molecules of substances. Given these facts, to identify that liquid 's boiling point requries among the following options: - vibrations of the atoms - kinetic energy - degrees Celsius - The bending of a ray of light - degrees celcius - Evaporation of water - evaporative cooling - fissures of hot, acidic water
vibrations of the atoms

Mechanical weathering is when rocks are broken down by mechanical means, and erosion begins with the weathering, or breaking down, of rocks and soil. Given these facts, what is it called when rocks are broken down mechanically among the following options: - mines - dangerous - coral reef - cracking - tube - loose soil - calcite - erosion
erosion

Gravity causes objects that have mass to be pulled down on a planet, and rocks have mass. Given these facts, what does gravity cause to be pulled down on a planet among the following options: - matter - heat - earth - solutes - oceans - Rocks - people - Lift
Rocks