Carbon dioxide (CO 2) is usually pumped as a liquid, usually below 5Â°C (41Â°F) and a pressure of about 50 bar. The solvent is pumped as a liquid as it is then almost incompressible; if it was pumped as a supercritical fluid, much of the pump stroke would be used up in compressing the fluid, rather than pumping it.
Lice can live up to a month and can lay up to 10 eggs a day. An egg takes 7-10 days to hatch. A nymph is a baby louse. A nymph takes 7-10 days to mature into an adult louse. Only adults can lay eggs. The dark brown eggs are the newly laid eggs.
There are 3 stages in the life of lice: nit (egg), nymph, and adult. Adult lice lay nits and stick them to hair strands or clothing fibers. Nits look like tiny pieces of dandruff that cannot be brushed off. Nymphs hatch from nits in 7 to 10 days. They are clear in color and feed on scalp blood.