Identify the plant shown in the given figure.

$A$ sound absorber attenuates the sound level by $20\, dB$. The intensity decreases by a factor of

When the coordinate axes are rotated by an angle $\tan ^{-1}\left(\frac{3}{4}\right)$ about the origin,then the equation $x^2+y^2=9$ is transformed to the equation.

What is Thuringioside?

The condition that $f(x)=a x^3+b x^2+c x+d$ has no extreme value, is

The energy-releasing metabolic process in which substrate is oxidized without an external electron acceptor is called: