what are silos and granaries?

A granary is a storehouse or room in a barn for threshed grain or animal feed. Ancient or primitive granaries are most often made out of pottery. Granaries are often built above the ground to keep the stored food away from mice and other animals.

it is where crops are stored

• Granaries are building structures that are used for large scale storage of grains and protect them from pests like rats and insects.

• Silos are of various types such as wooden, concrete, metallic, bag, etc. Silos can store almost all type of crops. But it depends upon some factors (like the type of grain, time periods for which grains need to be stored) as which silos need to be used for storing what. For example, if the storage is needed for short duration then the wooden silos can be used but for long term storage the metallic silos are used.