your answer would be An Ion
A scientific investigation...
<span>Early civilisations were most likely to fight over control over limited resources. Because at that time civilisations did not have the capability to travel far for food and water, they had only what they found around them when they settled, but what they found was often already being coveted by another group, so the only option was to fight until one group won out.</span>
please this is my answer
building blocks of tissue for living things