Answer:
nomads
Explanation:
but why do you keep asking that question
Nomads
Before the cultivation of plants, early humans roamed around, searching for food, without staying in place. The only reason humans settled down in cities was because the cultivation of plants was not a mobile endeavor.
Productivity
I think its C - the growth of the textile industry.
Given
A Planet is moving at a rate of 3 cm/year
distance between planets is 1500 km
and 1 km=1000 m
1 m=100 cm
No. of years required to cover 1500 km=