Questions

Skimming is the removal of any material or particles that are floating on the surface. Hence, Removal of oil and grease from sewage - waste water is called as skimming.

Cellular respiration is the multi-step process that creates energy from nutrients and food molecules. It begins in the cytoplasm of the cell, with the mitochondria functioning as the main organelle where the rest of the process continues and finishes.

During respiration, glycolysis occurs in the cytoplasm of the cell.

The first talkie film in India was Ardeshir Irani released Alam Ara, on 14 March 1931.

Irani later produced the first south Indian talkie film Kalidas directed by H.M. Reddy released on 31 October 1931.

Six-times World Women Boxing Champion and Olympic medalist, MC Mary Kom has been conferred with the title of "Meethoileima" by the government of Manipur.

The Stoic School taught that man should accept his fate, since he cannot change it. According to Stoics, serenity of mind is the goal all men should strive to attain.Epicureans believed that the highest good for man is pleasure ,but they aimed at tranquility of mind rather than indulgence in pleasures.

Here all the options given are important functions of Earth's atmosphere.