Why is dirt brown? and why is the grass green? oh why oh why?
and why is the grass green? oh why oh why?
Answers: Not all mud is brown. In different parts of the country their are actually red, blacks, depending on the earth's. I googled this and come up with an answer from this site........hold a look.
Hope this help.
Red dirt is liberal of special to a geologist or a soil scientist, because it is often (but not always) an indication of a soil type call an oxisol, which is a highly weathered soil containing lots of iron (thus the red color) and aluminum oxides. It is habitually an indication of a present or past tropical climate. To see some pictures and locations where on earth 'red dirt' is found today go to:
http://soils.ag.uidaho.edu/soilorders/ox...
The eastern US have a lot of 'red dirt' i.e. a different type of soil called an ultisol. They form within humid temperate to tropical climates and contain seriously of clay minerals. Take a look here:
http://soils.ag.uidaho.edu/soilorders/ul...
That plain old dirt you refer to is probably freshly as interesting, but likely contains much more life material than red dirt, It could be polar loess from the past polar period, or volcanic ash, or even the dust that have blown across the Atlantic Ocean from the Sahara Desert. The Sahara is actually where on earth the soil on the Caribbean island of Barbados, which is built on an ancient carbonate reef has come from.
2 years ago
Source(s):
http://soils.usda.gov/education/facts/fo...
http://soils.ag.uidaho.edu/soilorders/in...
Grass is green because it have chlorophyll. But the answer to both is the same aim actually: because they contain carbon.