Rachel Carson’s warning in Silent Spring was focused on . a. overgrazing by livestock b. global warming c. the misuse of pesticides d. fish stock declines

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