Is a diary a primary or secondary source?

A primary source. A primary sources are first hand accounts like diaries, autobiographies, etc.

During the paleolithic, hominins grouped together in small societies such as bands, and subsisted by gathering  plants  and fishing, hunting or scavenging wild  animals. the paleolithic is characterized by the use of knapped stone tools, although at the time humans also used  wood  and bone tools.

Water(like when there is a hurricane)some foods(not enough for everyone)