Question

which term describes weathering?
breaks down rock
causes heating and cooling
makes pebbles and rocks larger
carries away fragments

Explanation:

Weathering is defined as the process that breaks down rocks, soils, and minerals at or near the Earth's surface. Heating and cooling are agents that can cause weathering, not the definition of weathering itself. Weathering does not make rocks larger, and carrying away fragments is erosion, not weathering.

Answer:

breaks down rock