Question
A number of elements are available in earth's crust but most abundant elements are _________.
A.
$$Al\,\,{\text{and}}\,\,Fe$$
B.
$$Al\,\,{\text{and}}\,\,Cu$$
C.
$$Fe\,\,{\text{and}}\,\,Cu$$
D.
$$Cu\,\,{\text{and}}\,\,Ag$$
Answer :
$$Al\,\,{\text{and}}\,\,Fe$$