What term describes the theory that natural disasters shaped Earth's landforms and caused species to become extinct?

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

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

Which of the following explains why a tree is often used as a model to represent the principle of common descent