Questions

Mohan, having a mass of 40 kg, runs up a staircase of 50 steps in 10 s. If the height of each step is 15 cm, then what is his power?

Selling cost have to be incurred in case of

The exchange of materials between blood and interstitial fluid occurs only at the _____.

In stems, the protoxylem lies towards the centre and the metaxylem lies towards the periphery of the organ. This type of primary xylem is called _____________.

In Microsoft Word, _______ allows us to change the color of selected text.

The only non-metal which is liquid at room temperature is

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.
He said, "I saw a snake here."

Which one of the following non­metals shows allotropy in the liquid state?