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.
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.
Q&A Related to "Why Do We Need the Sun"
The sun provides energy, and therefore life, to our planet. Its gravitational pull keeps us at just the right distance to receive enough energy. Too much would result in Mars-like
http://answers.ask.com/Science/Astronomy/why_do_we...
What Color is the Sun? Though humans perceive the sun as yellow when they look directly at it, it is actually white. The sun is made up of a collection of gases, such as helium, hydrogen
http://www.ehow.com/how_4910119_we-perceive-sun-as...
Sun protective clothing is clothing that is manufactured from ultraviolet (UV) protective fabric. The definition of a sun protective fabric is a fabric that must achieve a minimum
http://www.ask.com/question/why-do-we-need-sun-pro...
If the sun was just turned off, any preparedness would be about fighting for days. The earth would start to cool towards about -240 C that is the stable surface temperature caused
http://www.quora.com/Hypothetical-Questions/Assumi...
Explore this Topic
Human beings require the sun since it is a natural source of vitamin D, which is an immune system regulator. The sun is also the main source of energy and light ...
Sun protective clothing is clothing that is manufactured from ultraviolet (UV) protective fabric. The definition of a sun protective fabric is a fabric that must ...
Sun protective clothing is clothing that is manufactured from ultraviolet (UV) protective fabric. The definition of a sun protective fabric is a fabric that must ...
About -  Privacy -  AskEraser  -  Careers -  Ask Blog -  Mobile -  Help -  Feedback © 2014 Ask.com