$(a)$ State two characteristics of a healthy animal.
$(b)$ State any four characteristics of storage structure for grains.

(N/A) healthy animal feeds regularly and maintains a normal posture.
$(b)$ The characteristics of storage structures for grains are:
$(i)$ They should be properly cleaned and dried before use.
$(ii)$ They should be airtight to prevent moisture and pest entry.
$(iii)$ They should have outlets at different levels to facilitate the withdrawal of the required stock of grains.
$(iv)$ They should have pathways for periodic inspection,spraying,or fumigation.
$(v)$ They should have built-in arrangements for aeration,temperature control,and protection from pests.