Which answer choice most appropriately fits in the blank? cause: erosion and weathering break down rocks into smaller pieces. effect:

a. then, the waves hit rocky cliffs and break the rocks apart.
b. then, the small rock pieces build up and create new rock.
c. then, the rocks and pebbles carried by the organisms to carve out canyons and gorges.
d. then, the wind, sand, and pebbles beat against the rocks and the rocks break

b. the carbon cycle ensures living things have a source of hydrogen

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation:

i believe it would be c: tons.