Which of the following is responsible for the formation of peat?

$A$ linear charge having linear charge density $\lambda$ penetrates a cube diagonally and then it penetrates a sphere diametrically as shown. What will be the ratio of flux coming out of the cube and the sphere?

Genes that are involved in turning on or off the transcription of a set of structural genes are called:

If the vector $a = 2\hat{i} + 3\hat{j} + 6\hat{k}$ and $b$ are collinear and $|b| = 21$,then $b$ is equal to:

Which of the following complex ions is not expected to absorb visible light?

Secondary sewage treatment is mainly a