There is no such thing as an "ormal curve". And a Normal curve IS symmetrical!
Ormal O. Gossett has written: 'Banking for the young and the young at heart' -- subject(s): Banks and banking, Juvenile literature
A curve is so strong because when you apply a force on top of the curve the weight of that forced is transferred to the bottom parts of the curve which makes it really strong like bridges that use arcs
they curve because they have a heavy filling inisde that makes it curve
Weather climate patterns
A curve
Asymmetrical
If you mean horizontally asymmetrical there are 15: BCDEFGJKLNPQRSZ If you mean vertically asymmetrical there are 17: AFGJLMNPQRSTUVWYZ
Now it is considered by most scientists that the universe is asymmetrical.
Meniscus
A gradual change in the gradient (slope).
I think the earth is wobbling on its axis and it makes the tracking lines appear to curve when they are laid over the map.
Your question makes no sense. Significant is a word related to tests. The normal curve is a distribution, not a test.