4. The grasses that cover the prairies in America are disappearing. The soil is good and there is enough rain. What is MOST LIKELY causing the grass to disappear? A) Too many hawks are eating snakes. B) The number of snakes has gone down. C) Too many grasshoppers are eating the grass. D) Too many earthworms are breaking down the soil.

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.

geologic time scale (for gradpoint) =)

copper and glass have high electrical conductivity

increases the risk of extinction 

explanation:

the answer is that if the species suffers from the disease, there is nothing stronger than the others, so it is possible to remove wholeness. an example of this is hunger in irish potatoes, which has a deadly disease bearish part of all potato harvest masses. pretty much ruins the land of crops.