If motion causes thermal expansion, then what causes thermal expansion? Answer choices: - power - Chimneys - Sun - motion - Energy. - sunlight - coal - energy
motion

If organisms increase the nutrients in soil, then what living thing increases nutrients in soil? Answer choices: - snail - fertilizer - chemicals - bushes - mussels - plants - organisms - compost
organisms

Q: If natural openings on the surface that lead to caves are formed by precipitation, then natural openings on the surface, leading to caves are formed by what? Answer choices: - hydrogen and oxygen - aqueous solution - precipitation - calcite - erosion - flow of electrons - Calcium carbonate - Physical weathering
A: precipitation

Question: If condensation causes rain, then what causes rain? Answer choices: - earthquakes - heating liquids - condensation - flooding - peachleaf willow - volcanos - Water expanding - rainbows
Answer: condensation

*Question*
If flowers attract bees, then what do flowers attract? Answer choices: - Fruits - stems - roots - pollen - sheep - bushes - bees - plants
**Answer**
bees

Q: If chromosome duplication occurs when cell division produces gametes, then chromosome duplication occurs when cell division does what? Answer choices: - produces sound - produces gametes - rapid expansion - makes proteins - permineralization - checks dna - Plant reproduction - it can be seen
A: produces gametes