You are a scientist who studies the ecological interactions between parasitic orchid plants and their host plants. you are interested in examining how these orchids affect their respective host plants' ability to conduct photosynthesis.

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils