Fill in the blanks:

(a) …………… is present in both living and non-living things.

(b) The tendency of an element to exist in two or more forms but in the same physical state is called …………… .

(c) …………… and …………… are the two major crystalline allotropes of carbon.

(d) …………… is the hardest substance that occurs naturally.

(e) The name 'carbon' is derived from the Latin word …………… .

(a) Carbon

(b) Allotropy

(c) Graphite, Diamond

(d) Diamond

(e) Carbo