how are kettle lakes formed?

What does the chemical formula c3h6o2 tell about a molecule of the compound it represents

What are the types of genetic recombination

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