The strongest reducing agent among the following is:

The process requiring absorption of energy is

If $y$ is a function of $x$ and $\log(x+y) = 2xy$,then the value of $y'(0)$ is

Which of the following is a non-living level of biological organization?

Which of the following hormones is used to induce callus formation from shoot tips?

$A$ black body at a temperature of $1640\,K$ has the wavelength corresponding to maximum emission equal to $1.75\,\mu m$. Assuming the moon to be a perfectly black body,the temperature of the moon,if the wavelength corresponding to maximum emission is $14.35\,\mu m$,is.......$K$.