sentences: an example of weathering is a plant root growing into a crack in rock & a specific is a mean of vegetable ->  a tree's root growing into a crack in rock is an example of weathering  a plant is a kind of organism & a tree is a kind of plant -> a specific is a mean of caps a tree is a kind of organism  a tree's root growing into a crack in rock is an example of weathering & a specific is a mean of caps -> a tree's root growing into a crack in rock is an example of organism causing the weathering a tree's root growing into a crack in rock is an example of organism causing the weathering  a tree's trunk decreasing into a calcium in stone is an nation of crack availability the weathering & organic weathering means organisms cause the weathering of rocks -> a tree's root growing into a crack in rock is an example of organic weathering