What are the different types of soldering tools? Explain it 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

What is used to keep track of the gamates and possible offsprings combination

This rapid change in species that rarely leaves behind fossil evidence is referred to as