Why Do We Need the Sun?

Answer

Generally, people need the sun because the sun provides the energy that maintains almost all forms of life on Earth. The sun is our source of natural light and warmth which is essential for survival. The sun is also important to humankind because it helps our skin manufacture vitamin D.
Q&A Related to "Why Do We Need the Sun"
An answer to that could be long and complex. In short we need it for heat and light, to help things grow, to affect our climate, for energy and to sustain life in many other ways.
http://wiki.answers.com/Q/Why_do_we_need_the_sun
Digestive enzymes are crucial for breaking down food, so it can be absorbed by the body. Once food is broken down into smaller molecules that can be absorbed into the bloodstream,
http://www.ehow.com/about_5413073_do-need-enzymes-...
Forcing yourself to articulate or explain strategy to another is an extremely difficult task. This helps shake out either a flawed understanding of how the business creates value
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Lens flare appears in photos in a pattern resulting from the aperture blades (diaphragm) of your camera. The diaphragm is a system of blades that open and close to control the amount
http://www.ehow.com/info_8600985_do-white-spots-to...
2 Additional Answers
We need the sun for life, heat, and energy. Almost all living things require the sun to live and grow. Without the sun, Earth would be freezing and dark.
The sun provides a number of valuable services. One of them is the gravity that the Earth needs to stay in orbit. If the sun ceased to exist the Earth would shoot off into space. Another of these services is light and an even more important one than the light is the nutritional benefit of sunlight for all living things, plants most especially.
Explore this Topic
Plants need the sun for them to grow and flourish well. They use light energy from the sun to change the materials, for instance carbon dioxide and water into ...
It is not clear why the sun is called sun. It is also not clear where the name 'sun' came from. The Romans called the sun 'sol', while the Greek name for this ...
The sun is important because it supplies us with heat and light and is the main source of energy on our planet. The sun's gravitational pull is what holds the ...
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