Why do you think that light is essential for everyday life
Answers
Answer:
Light is the main source of energy for all living organisms. Plants, main sustainers of life, are crucial in this conversion process and need light for photosynthesis that enables them to make their own food and food for others. And, perhaps more importantly, photosynthesis produces oxygen too!
Answer:
LIGHT IS ESSENTIAL
Light, the essence of life itself. Without it we simply would have nothing. It’s incredible to think that something we often don’t notice simply because it is always present, though not tangible, is the most valuable resource on this planet. Light is the main source of energy for all living organisms. Plants, main sustainers of life, are crucial in this conversion process and need light for photosynthesis that enables them to make their own food and food for others. And, perhaps more importantly, photosynthesis produces oxygen too!
During this process, some of the sugars plants produce get stored in fruits and vegetables, so basically we eat converted and stored light. Since we cannot live without food and oxygen, the impact of photosynthesis on our daily life is crucial. Photosynthesis creates all our major sources of energy, not only for our body’s activities but also in regards to the fossil fuels we use today. They are made of ancient layers of compressed organic matter stored underground which originally got their energy from photosynthesis as well.
Since many of us have been deprived of long days all winter, and finally the days are getting longer again, let’s discuss how light can improve our health and wellbeing.
LIGHT AS A SOURCE OF VITAMIN D
It's no surprise that sunlight has many health benefits. People need direct exposure to sunlight simply because the ultraviolet rays (also called UVB) help the body produce vitamin D. Vitamin actually is not the right name because in reality it’s a hormone, but nonetheless truly essential. Its function is active in many parts of the body, taking care of a variety of important processes, from boosting our happiness and immune system, to fighting all kinds of infections and serious illnesses. But before we go out and catch those beams, preferably 15 to 30 minutes of direct exposure on a summer day and at least one hour in autumn, winter and spring times, let's take a closer look at how the sun’s rays get converted into smiles, tans, and overall health.
First off, there are two forms of vitamin D: vitamin D2 and D3. Both forms are created by the direct action of sunlight. Vitamin D2 (ergocalciferol) is produced when sunlight irradiates ergosterol, the naturally occurring pro-vitamin in plants and fungi, so D2 can be absorbed from our diet.