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Isolated in which way??? The US likes its independece and as such it does not follow many currents, it is a selfish county. What exactly is your question?
Not exactly. Light from the sun consists of electromagnetic radiation. We can tell this is so because sunlight has a range of colours emitted, which has wavelengths that are within EM spectrum.
A culture is when they take a swab of a part of your body and then touch that swab on a medium, which is usually a sort of jelly with nutrients in it. Bacteria from the swab grow on this medium and can usually be identified so the doctor knows what exactly to treat and what drugs would be effective against the strain isolated.
Radiation is exactly waht it sounds like... Nuclear energy would be running through you're system slowly killing you :)
It doesnt exactly trigger it, but sunlight is needed to complete the process Photosynthesis is powered up by light.It is very essential for photosynthesis
Some do, yes. Its not exactly "eating" but a process known as "phagocytosis."
Not exactly, they are minute energy packet of electromagnetic radiation.
Like in a greenhouse, greenhouse gasses let radiation from the sun reach Earth (the 'inside' of the greenhouse) but won't let the Earth reflect radiation. This is exactly what greenhouses do. Through the glass walls, the sunlight can come in, but once the rays are inside, the heat is trapped. That causes (intentional) temperature rise in the greenhouse. These gasses also (most likely) cause a temperature rise on Earth.
Isolated in which way??? The US likes its independece and as such it does not follow many currents, it is a selfish county. What exactly is your question?
During an equinox, or an equilux.
From every direction that isn't blocked by the earth. The amplitude of the background radiation is almost exactly constant from all directions.
Indoor fluorescent light is not as bright as sunlight, and it is usually not exactly the same color (although there are different types of fluorescent tubes that produce different colors, some of which are extremely close to sunlight).