The composition of a sedimentary rock depends upon the composition of the rocks and living things its sediments came from.

TRUE

Explanation:

Sedimentary rocks are formed from sedimentation, compaction and lithification of sediments. This are formed due to the pressure exerted from the overlying sediments and rocks. For example, sandstone, limestone, shale and mudstone.

Sedimentary beds are suitable for deposition of fossils because fossils when embedded in it undergoes continuous sedimentation and lithification, thereby preserves the fossils in it.

Therefore, it can be conclude that the sedimentary rocks are directly derived from the deposited sediments as well as the fossils embedded in it.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."