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a light surface; a surface; and an opaque object between the light source and the surface.
When a bird fly too high from the surface of the earth it does not obstruct the light hence there is no formation of shadow on the earth.- Satish
because it has no screen
Translucent. If he can see the ball it would be transparent.
We need an source of light, an opaque object blocking the path of light, a screen behind the opaque object.
a light surface; a surface; and an opaque object between the light source and the surface.
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rectiliner propagation
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That light cannot pass through some materials, and that this leads to the formation of shadows.
Histone
The shadow could be a dog or bird like that.
an opaqe objecta sorce of light
Cellular and connective tissuedr.surabhi
reproductive isolation
Vitamin A