I don’t kneo this is really hard to know
Answer:
young children (aged 2-4 years) are as likely, and in some countries more likely as older children (aged 5-14 years) .
Answer: Afterimage
Explanation:
Afterimage is the effect that occurs in form of optical illusion to the eyes.An image glimpses can be seen even when exposure towards it has ended.These glimpses are illusion that are presented through visual system where retina creates an impression .
According to the question,professor is describing about afterimage concept through making children stare at screen square image for a while and then showing them white screen which makes them see an illusion of red colored square image that is not actually present.Illusion is present where image shape is same but color is changed due to reception mechanism.
Spread of Enlightenment thinking across Europe, a cascade of subsequent revolutions, and the establishment of a large number of democracies and republics throughout the globe.