Do sit-ups they are challenging and fun
Answer:
stamina
Explanation:
a proper focus and hardwork for the achievement
I only know it's a process of change of matter but I don't remember the exact types
Answer: Rapid- quick, fast, swift
Population- community, culture, people
Growth- advance., advancement., expansion.
Explanation: It's pretty much defining the words :) Anyways, have a good day!