$A$ sequence of how many nucleotides in messenger $RNA$ makes a codon for an amino acid?

If the temperature of the sun were to increase from $T$ to $2T$ and its radius from $R$ to $2R$,then the ratio of the radiant energy received on earth to what it was previously will be

Which of the following is not a Lewis acid?

Which of the following methods is used to obtain pure water from seawater?

The depletion layer in the $p-n$ junction is caused by

What percentage of the population in India is employed in the agricultural sector?