Define/Explain: $\alpha$-diversity.

Which of the following is the composition of a virus?

The potential energy of a particle oscillating along the $x-$axis is given as $U = 20 + (x - 2)^2$,where $U$ is in $joules$ and $x$ is in $meters$. The total mechanical energy of the particle is $36 \, J$. The maximum kinetic energy of the particle is ............... $J$.

Which of the following compounds is wrongly named?

If $x = \log_{5}(1000)$ and $y = \log_{7}(2058)$,then:

$\log ab - \log |b| = $