If rivers are what form canyons, then what are canyons formed by? Answer choices: - rocks - rainfall - rivers - mechanical force - calcite - silt - water - gravity
rivers

If cell division can be uncontrolled, then cell division can be what? Answer choices: - threatened - lacking cells - outside of the body - uncontrolled - without cells - Reproduction - cycles - unidirectional
uncontrolled

Q: If ethologists usually study how animals behave around germs, then ethologists usually study how animals behave around what? Answer choices: - Birds - germs - islands - humans - Summer - food - seasons - wetland
A: germs

Question: If wind causes wearing away of rock, then wind can cause? Answer choices: - nuclear fusion - scattered light - the wearing away of rock - destruction of energy - Electrical energy - faster movement - forest is destroyed - continents to shift
Answer: the wearing away of rock

*Question*
If batteries store chemicals, then what do batteries store? Answer choices: - chemicals - layers of fat - photons - Light - coded genes - nutrients - rays or beams - sunlight
**Answer**
chemicals

Q: If water is stored in the stem of the saguaro, then what is stored in the stem of the saguaro? Answer choices: - gas - water - ice - sand - fibrous - sugar - glucose - energy
A: water