State whether each of the following set is finite or infinite:
i) The set of lines which are parallel to the 'x' -axis.
ii) The set of letters in the English alphabet
iii) The set of numbers which are multiple of 5
iv) The set of animals living on the earth
v). The set of circles passing through the origin '(0,0)'

Explanation

(i), (iii), (v) are infinite
(ii), and (iv) are finite