Fact 1: Weathering means breaking down rocks from larger whole into smaller pieces by weather. Fact 2: Massive boulders and tiny rocks influence the sound and path of water. Given the two facts above, what means breaking down boulders by weather?
Select from the following.
(a). vehicles;
(b). weathering;
(c). erosion;
(d). mechanical;
(e). flooding;
(f). earthquake;
(g). hurricanes;
(h). tremors;
(b).