(Question)
You are presented with the question "What is caused by cycles of water freezing and thawing?" and the following answer choices: - heat is produced - a tree falling - peachleaf willow - Plant growth is reduced - root growth - mechanical weathering - Condensation - fissures of hot, acidic water Now knowing that cycles of freezing and thawing water cause ice wedging and ice wedging is the most important form of mechanical weathering, choose the best answer.
(Answer)
mechanical weathering

(Question)
You are presented with the question "Ice crystals can resist what?" and the following answer choices: - scattered light - power - erosion - salt and water. - sun's heat - salinity - Temperature - kinetic energy Now knowing that the sun causes water to evaporate more quickly by adding heat and ice crystals resist evaporation, choose the best answer.
(Answer)
sun's heat

(Question)
You are presented with the question "Opposite what cause something to move?" and the following answer choices: - forces - voltage - seats - brakes - friction - stationary - nerves - arteries Now knowing that producing thrust causes something to move and opposite forces cause the thrust of the rocket, choose the best answer.
(Answer)
forces