Which of the following is a biodegradable polymer?

If $e$ and $e^{\prime}$ are the eccentricities of the ellipse $5x^2 + 9y^2 = 45$ and the hyperbola $5x^2 - 4y^2 = 45$ respectively,then $ee^{\prime}$ is equal to

If $m$ and $M$ respectively denote the minimum and maximum of $f(x)=(x-1)^2+3$ for $x \in [-3, 1]$,then the ordered pair $(m, M)$ is equal to

Injury to the adrenal cortex is not likely to affect the secretion of which one of the following?

The total charge induced in a conducting loop when it is moved in a magnetic field depends on

Which of the following substances releases nitrogen gas upon thermal decomposition?