Water is used to cool radiators of engines in cars because:

Which of the following molecules has a zero dipole moment?

What is the reduction electrode potential (in volts) of a copper electrode when $[Cu^{2+}] = 0.01 \ M$ is in a solution at $25^{\circ} C$? ($E^{\circ}$ of $Cu^{2+}/Cu$ electrode is $+0.34 \ V$)

The resistance of a wire is $R$. If the length of the wire is doubled by stretching,then the new resistance will be

Which facilities have made poultry farming a popular business?

The equation of the directrix of the parabola ${y^2} + 4y + 4x + 2 = 0$ is