The epithelial tissue present on the inner surface of bronchioles and fallopian tubes is

The number of atoms/molecules contained in one face-centred cubic $(FCC)$ unit cell of a monoatomic substance is

Two solid spheres $A$ and $B$ made of the same material have radii $r_A$ and $r_B$ respectively. Both the spheres are cooled from the same temperature under the conditions valid for Newton's law of cooling. The ratio of the rate of change of temperature of $A$ and $B$ is :

Ferrous ion changes to $X$ ion upon reacting with acidified hydrogen peroxide. The number of $d$-electrons present in $X$ and its magnetic moment (in $BM$) are,respectively:

The angle between the curves $y=\sin x$ and $y=\cos x$ is

Which one of the taxonomic aids can give comprehensive account of complete compiled information of any one genus or family at a particular time?