Iron tools were used for agriculture. Larger communities pushed into the Ganges river . They used iron tools to cultivate rice.
<em>Any</em><em> </em><em>two</em><em> </em><em>features </em><em>of</em><em> </em><em>society </em><em>are</em><em>:</em><em> </em>
<em>1</em><em>.</em><em> </em><em>Strong</em><em> </em><em>mutual </em><em>bond</em><em>.</em>
<em>2</em><em>.</em><em> </em><em>Dynamic</em><em> </em><em>and</em><em> </em><em>progressive </em><em>.</em>
Answer: Persistence of vision.
Explanation:
The persistence of vision was described the first time by Peter Mark Roget.
Explain t<em>he ability of the retina to maintain an image a third of a second after viewing it, even when the image passed quickly.</em> This allows the brain to analyze and process the image. Due to this process, the visual information is processed continuously, much like a movie, instead of having pauses between images.
<em>I hope this information can help you.</em>
An undeveloped prefrontal cortex is partially responsible for impulsiveness in young children. The prefrontal cortex, which is a part of the brain located at the front of the frontal lobe, is the "executive" of the brain, because it is a crucial part of the brain, involved in planning, prioritizing, and reflection. If not fully developed these functions are not working properly.
I would say the compass because it helped them navigate, it also made traveling and exploring faster.
