This is considered to be the basis for the formation of life on land-based ecosystems. A. Nitrogen

B. Soil

C. Carbon dioxide

While winters are rainy, summers are dry. regions with this climate are usually in the eastern part of the continents. they experience hot, humid summers and colder winters. precipitations have a regular distribution throughout the year, but hurricanes are common.

Answer feldspar,quartz,mica and amphibole;