Why Do We Need Light?

Answer

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"
If we didn't have light it would be awfully hard to see things. Without light plants wouldn't grow and plants supply the oxygen that we need to live.
http://www.ask.com/web-answers/Science/Physics/why...
Summary: Plants need light to survive because light allows plants to absorb minerals into their bodies through photosynthesis. Find out how plants convert carbon dioxide to oxygen
http://www.ehow.com/how_4774932_why-do-plants-need...
We research things to find answers to specific questions. We may need these answers to help solve a certain problem, write an essay, fix a car, diagnose a patient etc. The reasoning's
http://www.ask.com/web-answers/Science/Psychology/...
For the vast majority of plants, their source of light is the sun. Light is absorbed by the plant during the day and the energy used to produce food and nutrients for the plant in
http://www.ehow.com/info_8067284_do-plants-need-li...
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 ...
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 ...
Sunlight is needed during the process of photosynthesis to provide the necessary energy. It is absorbed by chlorophyll molecules and its utilized in the light ...
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