The carbon cycle is important to life on Earth. Both oxygen and carbon dioxide gases are produced and used by living things. Study the diagram below. It shows the movement of gases between living and nonliving things. Use what you know to complete the diagram. Write carbon dioxide" or "oxygen in
the empty boxes.

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.

allowed for the prediction of the properties of missing elements.