18. mosses
19. burrow in the ground
i'm not sure about the answer for question 20
PLANTS AND ANIMALS
18. Plants can cause mechanical weathering. The seed of a tree, bush, or other plant may sprout in soil that has collected in a cracked rock. As the roots grow, they ___, eventually breaking the rock into pieces.
19. Animals that ___, such as moles and prairie dogs also work to break apart rock and soil. They use their tiny claws to dig through rock to build burrows.
20. Other animals ___ above the ground, causing rock to eventually crumble.
Please help me!!!
1 answer