They are used to kill viruses and bacteria.
Hello Welcome to Brainly
heres your answer
The macronutrients -- fat, protein and carbohydrates -- are high in energy density, which means that they have 4 or more calories per gram. The other essential nutrients -- water, vitamins and minerals -- have no calories, so they provide no energy.
your welcome :}
<span>The sun's energy reaches Earth in the form of photons. This energy can be converted into electricity or heat. Solar collectors are already used successfully by energy companies and homeowners to produce electricity. New technological advances have increased efficiency of solar collectors by concentrating solar power using solar cells</span>
Copper, Sulfur, and Oxygen are three examples of Elements, which can be easily located under the "Periodic Table".