Donald johanson, tom gray, and others discovered a hominid that lived in east million years ago and nicknamed her lucy, whose scientific name they gave as
(a) 35, homo habilis
(b) 3.5, homo africanus
(c) 5.5, australopithecus africanus
(d) 3.0, australopithecus afarensis
(e) 5.5, australopithecus boisei

the animal that would be cutest if scaled down to the size of a cat? elephant

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