yes there is
the caste system
There is still Caste System (social classes) in India and it puts differences between the people.
Heat is a form of energy... noticeable only by the temperature differences
social differences lead to social division like based on proffision ,caste, religion etc
yes they are,,
Yes, most people don't even know you have braces since they are not as noticeable as metal braces :)
8 and 10
He does, its just less noticeable
yes dad i luv u
They were small because then they were less noticeable for the German aircrafts
light your hair on fire