When does crossing over occur? a) meiosis b) mitosis c) both d) neither

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

Whats one way that rocks do not follow the typical rock cycle pathway?

In the practice of science, this type of reasoning is used to develop explanations.