Why Do We Need Light?


Light has a very vital role in our everyday life. It is used to illuminate objects and to guide our way in the dark. Light is also very essential in transportation as it guides drivers, pilots and sailors as they navigate. Without light from the sun, plants would not be able to manufacture food required for their growth and survival.
Q&A Related to "Why Do We Need Light"
Human vision is possible due to the ability of the eye to sense light. When a light source such as the sun strikes an object, the object reflects certain wavelengths of light and
Well... I'm going to start by saying that I really don't understand most of what you've written in the question details. Physicists have an allergic reaction to things like that.
Well the light bounces off the item back to your eyes. A red substance reflects back only red light yellow only yellow and so on.
We Are The Light Lyrics:People Light up your light tonight I wanna see you
2 Additional Answers
We need light to see when it is dark outside. If we did not have light we could easily stumble and get hurt, or be attacked by wild animals.
We need light just as much as plants do, but for different reasons. One is our internal body clock. Light regulates our internal clock and tells us when it's time to sleep and when it's time to wake up. It also prevents depression and illness. We need light to give us certain vitamins we need. You can find more information here: http://www.jsonline.com/features/29324864.html
Explore this Topic
Light is needed for photosynthesis because it is an essential factor. Light provides energy to fuel the chemical reactions in the process of photosynthesis. This ...
Light and chlorophyll are needed in photosynthesis because, the plant turns light into energy. Photosynthesis uses the energy from light to convert carbon dioxide ...
Plants require light for photosynthesis, where it splits water molecules apart to release more energy from the chemical bonds. Light is also essential for plant ...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com