Identifying the number patterns and fill in the missing numbers 48 47 45 42 38​

One of the main reasons societies settled along rivers in the neolithic era was because a) the village elders demanded it. b) the land there was more valuable. c) it was more safe and secure there. d) it provided irrigation for farming.

Witch of the following volcano hazards is made up of rocky particles about the size of a grain of sand

What does 2[tex] {2}^{ - 4} \times {2}^{ - 2} [/tex]