The modern English word green comes from the Middle English and Anglo-Saxon word grene, from the same Germanic root as the words "grass" and "grow". It is the color of living grass and leaves and as a result is the color most associated with springtime, growth and nature. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy. Many creatures have adapted to their green environments by taking on a green hue themselves as camouflage. Several minerals have a green color, including the emerald, which is colored green by its chromium content. 

In surveys made in Europe and the United States, green is the color most commonly associated with nature, life, health, youth, spring, hope and envy. In Europe and the U.S. green is sometimes associated with death (green has several seemingly contrary associations), sickness, or the devil, but in China its associations are very positive, as the symbol of fertility and happiness. In the Middle Ages and Renaissance, when the color of clothing showed the owner's social status, green was worn by merchants, bankers and the gentry, while red was the color of the nobility. The Mona Lisa by Leonardo da Vinci wears green, showing she is not from a noble family; the benches in the British House of Commons are green, while those in the House of Lords are red. Green is also the traditional color of safety and permission; a green light means go ahead, a green card permits permanent residence in the United States. It is the most important color in Islam. It was the color of the banner of Muhammad, and is found in the flags of nearly all Islamic countries, and represents the lush vegetation of Paradise. It is also often associated with the culture of Gaelic Ireland, and is a color of the flag of Ireland. Because of its association with nature, it is the color of the environmental movement. Political groups advocating environmental protection and social justice describe themselves as part of the Green movement, some naming themselves Green parties. This has led to similar campaigns in advertising, as companies have sold green, or environmentally friendly, products.
What makes the emerald green?
Where does most green come from in nature?
Is that a chemical?
What uses that?
to make what?
out of what?
How?
Where does the word green originate?
Where is that from?
What kind of root does it come from?
What other words use that root?
What is associated with this color?
Does anyone ever think of green with death?
Where?
How often?
What color does Mona LIsa have on?
What does this symbolize?
Is there a famous green card?
What does it grant someone?
Where?
chromium
the emerald, which is colored green by its chromium content
chlorophyll
By far the largest contributor to green in nature is chlorophyll
yes
 By far the largest contributor to green in nature is chlorophyll, the chemical
plants
 the chemical by which plants photosynthesize
chemical energy.
plants photosynthesize and convert sunlight into chemical energy.
sunlight
 plants photosynthesize and convert sunlight into chemical energy
photosynthesize it
plants photosynthesize and convert sunlight into chemical energy.
the word grene
The modern English word green comes from the Middle English and Anglo-Saxon word grene
Middle English and Anglo-Saxon
The modern English word green comes from the Middle English and Anglo-Saxon word grene
Germanic
from the same Germanic root
"grass" and "grow"
he same Germanic root as the words "grass" and "grow"
springtime, growth and nature
associated with springtime, growth and nature
yes
 Europe and the U.S. green is sometimes associated with death 
In Europe and the U.S
 In Europe and the U.S. green is sometimes associated with death 
sometimes
is sometimes associated with death 
green
The Mona Lisa by Leonardo da Vinci wears green
that she is not from a noble family
showing she is not from a noble family
yes
a green card permits permanent residence in the United States
permanent residence
a green card permits permanent residence in the United States
the United States
a green card permits permanent residence in the United States