From approximately 93 million miles away, relative size is difficult to estimate utilizing only visual clues. This yellow dwarf (our Sun) is actually in about it's mid-life stage, having remained relatively stable for the past 4 billion years- and is expected to remain so for about another 4 billion years. However- around that time, the hydrogen fusion at the core of the Sun will end, causing it to become a red giant, the size of which will engulf the Earth.
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Hydrostatic equilibrium.
See related question.
Hydrostatic and thermal equilibrium
convection currents
Yes, as the plasma membrane acts as a base for the cytoskeleton of the cell. (Which helps to maintain the shape of the cell.)
Cholooplast helps to maintain the cells structure.
what is the shape of the sun? the shape of the sun is a 3d shape and it is a sphere.
The sun is a ball
it provides rigidity to the cell ,helps to maintain its shape and size and protects against variations io environment.
gravity
The sun will never change its size and shape, when the sun was created that's how it came out, no body can go to the sun and see whats there its just sun it has to be alt east half of the earth because it goes around 360 divide it by 2, and it would be half! that's why the sun size and shape cant change!
the light of the sun
If the sun's rays are parallel, you get a same size and same (projected) shape. They are pretty much parallel (to each other).
because Chuck Norris said so
Shape: sphere (3-dimentional circle) Size: diameter over 1.3 million km at equator. That's over 100 times the Earth's diameter.
The sun is approximately 400 times the size of the moon, however, it is also approximately 400 times farther away. This relationship cancels out and makes the sun and the moon appear observationally to be the same size on earth.
the sun maintain its energy output by nucler fusion
http://solarsystem.nasa.gov/planets/profile.cfm?Object=Sun&Display=Facts
Pressure caused by high temperatures are balanced by gravity
the way that you stand determines the shape of a shadow.
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