'Nonperishable' is already in English.
Cans of food or boxes of noodles are supposed to be nonperishable food items.There you go!
An adjective, for example: The nonperishable apple never went rotten. The word nonperishable is describing apple, and apple is a noun and adjectives describe nouns.
You have spelled it correctly.
Yoghurt is not non-perishable.
Something that won't spoil quickly.
Lutefisk is a particularly nasty, nonperishable foreign food. This fermented fish, stored in a jar or can, has an overwhelming lye odor, but is considered a delicacy in Norway.
Things like oils and waters
No, it will grow eyes, then sprouts, and then eventually turn to mush and rot.
All crops are perishable - being of natural origin they are all susceptible to decay.
LOTS of water, white clothing/light colored clothing ,(nonperishable food(nuts , dried fruits , jerky etc.) , basic shelter (tent most likely), good boots ( snake bites 0.0) Also a map or GPS, and a cell phone (that hopefully has service)
c) either the good remains unsold or the price drops