The list of traits describes a typical pine tree. which trait is caused by the environment, not genetics? a) bark cracked and gray b) treelike growth pattern c) sheds needles in dry conditions d) height varies between 20 and 30 feet

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds