Living organisms can be distinguished from non-living things on the basis of which ability,excluding exceptions?

Which one of the following is mainly responsible for the depletion of the ozone layer?

In the Sun,the important source of energy is

In a meter bridge,the null point is found at a distance of $25\, cm$ from $A$. If now a resistance of $10\,\Omega$ is connected in parallel with $S$,the null point occurs at the midpoint of $AB$. The value of $R$ is .............. $\Omega$. (in $.67$)

Let $\overrightarrow{a}, \overrightarrow{b}, \overrightarrow{c}$ be the position vectors of the vertices $A, B, C$ respectively of $\triangle ABC$. The vector area of $\triangle ABC$ is :

$A$ weight $W$ can be hung in any of the following four ways by using the same string. In which case is the string more likely to break?