If soil is formed by breaking rock into smaller pieces, then what is formed by breaking rock into smaller pieces? Answer choices: - crust - trees - soil - dirt - cracks - glaciers - water - ice
soil

If making plastic requires refining, then what does making plastic require? Answer choices: - digestion - weathering - less water - adding heat - recycling - Energy - death - refining
refining

Q: If brakes cause friction, then what causes friction? Answer choices: - chemicals - Energy. - energy - wind - driving - brakes - heat - nerves
A: brakes

Question: If adding sulfer to soil can cause plants to die, then adding sulfur to soil can cause what? Answer choices: - contamination - flooding - plants to die - Pollution - chemical reaction - Greenhouse gasses - global warming - harmful substances
Answer: plants to die

*Question*
If female gametophytes produce eggs inside the ovaries of peonies, then female what produce eggs inside the ovaries of peonies? Answer choices: - gametophytes - Plant reproduction - honeybees - peachleaf willow - insects - fertile - orchids - graptolites
**Answer**
gametophytes

Q: If storms cause the amount that lakes contain to increase, then what cause the amount that lakes contain to increase? Answer choices: - nutrients - icebergs - bacteria - storms - lily pads - excretion - flooding - droughts
A: storms