Do a research on - sunlight + seawater =fresh water + food
Including purpose ,aim and methodology
word limit 350 words
Answers
SUNLIGHT :
Sunlight is the light and energy that comes from the Sun. When this energy reaches the earth's surface, it is called insolation. ... It is the radiation and heat from the Sun in the form of electromagnetic waves. The atmosphere affects the amount of solar radiation received
Ordinarily, sunlight is broken down into three major components: (1) visible light, with wavelengths between 0.4 and 0.8 micrometre, (2) ultraviolet light, with wavelengths shorter than 0.4 micrometre, and (3) infrared radiation, with wavelengths longer than 0.8 micrometre.
Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays.
SEAWATER:
Seawater, water that makes up the oceans and seas, covering more than 70 percent of Earth's surface. Seawater is a complex mixture of 96.5 percent water, 2.5 percent salts, and smaller amounts of other substances, including dissolved inorganic and organic materials, particulates, and a few atmospheric gases.
Seawater, or salt water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 599 mM).
The chemical composition of sea water is relatively simple to interpret - it's H2O with a few extras. If you collect a sample of ocean water and take it to the laboratory, a chemist will quickly identify six major ions.
FRESHWATER :
Fresh water (or freshwater) is any naturally occurring water except seawater and brackish water. Fresh water includes water in ice sheets, ice caps, glaciers, icebergs, bogs, ponds, lakes, rivers, streams, and even underground water called groundwater. ... Water is critical to the survival of all living organisms.
Yet freshwater is essential for life. Plants, animals, and humans all need freshwater to survive. We use for drinking water, to irrigate crops, as part of sanitation systems, and in industrial factories, to name a few. Water used up from groundwater, rivers and lakes is replenished by rain and snowfall
FOOD:
Food is any substance consumed to provide nutritional support for an organism. Food is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals.
Food are divided into 7 different groups : drinks, carbs, fruits and vegetables, dairy, meat / fish / eggs, fats and high-sugar foods. Each of these groups provide different nutrients and should be consumed at a different rate.
Foods and nutrients. A food is something that provides nutrients. ... energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy.