Progesterone is secreted by .........

Which one of the following salts gives an acidic solution in water?

The maximum value of ${x^4}{e^{ - {x^2}}}$ is

The sensitivity of a galvanometer is $60 \text{ div/A}$. When a shunt is used,its sensitivity becomes $10 \text{ div/A}$. If the resistance of the galvanometer is $20 \ \Omega$,then the value of the shunt used is: (in $\Omega$)

The imperfect fungi which are decomposers of litter and help in mineral cycling belong to

If the magnitude of average speed and average velocity over an interval of time are the same,then: