From which plant are flax fibers obtained?

$\sqrt{10 - \sqrt{24} - \sqrt{40} + \sqrt{60}} = ?$

In which disease does fluid accumulate in the alveoli and bronchioles?

$A$ weak acid $HX$ has the dissociation constant $1 \times 10^{-5} \text{ } M$. It forms a salt $NaX$ on reaction with alkali. The percentage hydrolysis of $0.1 \text{ } M$ solution of $NaX$ is ............... $\%$

The work function of nickel is $5 \text{ eV}$. When light of wavelength $2000 \text{ \AA}$ falls on it, it emits photoelectrons. The potential difference necessary to stop the fastest electrons emitted is (given $h = 6.67 \times 10^{-34} \text{ J-s}$): (in $\text{ V}$)

Which one of the following pairs is correctly matched with regard to the codon and the amino acid coded by it?