If in a $\triangle ABC$,$r_1 < r_2 < r_3$,then:

The scientist who classified plants based on their habitat is .........

On combustion of $Li$,$Na$,and $K$ in excess of air,the major oxides formed,respectively,are:

The vectors $\overrightarrow{AB} = 3\hat{i} + 4\hat{k}$ and $\overrightarrow{AC} = 5\hat{i} - 2\hat{j} + 4\hat{k}$ are the sides of a triangle $ABC$. The length of the median through $A$ is

Some inert gas is added at constant volume to the following reaction at equilibrium:
$NH_4HS_{(s)} \rightleftharpoons NH_{3(g)} + H_2S_{(g)}$
Predict the effect of adding the inert gas.

Which of the following statements is correct for diamagnetic materials?