What two recurring events in earth's history have an impact on the carbon cycle?

1.volcanoes erupt.

2. Fossil formation.

Explanation:

1. The volcanoes vent gas to the atmosphere, they emit between 130 and 380 million metric tons of carbon dioxide per year.

2. Heat and pressure compress organic carbon (carbon from living organisms) embedded in layers of mud. By this process sedimentary rocks are formed.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.

a bird that nests only in a particular tree species.