Questions

We have 12 months.

In every month we get 28 or more days. 

So that implies we get 28 days in each and every month.

It is used to get parent process identifier

In scouts, the military and most outdoor books or schools teach the COLDER principal. It is a great acronym for caring and using you clothing.

C - keep your clothing CLEAN. Dirt can break down the fibers of your clothing.

O - don't OVERHEAT. Sweat can lessen the effectiveness of clothing.

L - wear you clothes LOOSE and in LAYERS. Makes your system versatile.

D - stay DRY.

E - EXAMINE your clothing. Look for worn or damaged areas of you clothing.

R - REPAIR any damage that is found.

Dry ice is solid form of carbon dioxide, used as a cooling agent.

It lower temperature than that of water ice and not leave any residue.

The pygmies are hunting nomads