Some nonsedimentary rock are formed as a result of 1. solidification of molten material 2. evaporation and precipitation 3. cementation of particles 4. depositions of particles

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 causes darkening of the skin as melanin production increases

Which of these parts of the membrane large moecules pass through it ?