(Q).
You are presented with the question "Cycles of freezing and thawing water cause " and the following answer choices: - exposure to cold - the oak can fall - mechanical weathering - the looseness of soil - In the winter - Metling snow - colder and wetter - looseness of dirt or compost 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.
(A).
mechanical weathering

(Q).
You are presented with the question "Soil can be depleted of which of the following?" and the following answer choices: - Potassium carbonate - Chlorophyll - neon - sedimentary rocks - carbon monoxide - helium - Organic compounds - vegetation Now knowing that soil can be depleted of nutrients and potassium carbonate is a valuable nutrient for plants, choose the best answer.
(A).
Potassium carbonate

(Q).
You are presented with the question "If a habitat can longer support a species, that species tends to" and the following answer choices: - Plant growth is reduced - cause their death - It becomes dormant - threatened - stay in the area - clean the area - move to another are - fix the area Now knowing that if a habitat can no longer support animals then those animals will move to another area and each species of animal is unique, choose the best answer.
(A).
move to another are