Soil moisture. Soil moisture affects the soil biota in two ways. Biologically water is essential for life and for enzyme activity and metabolism and, is a solvent for biological nutrients and other chemicals. Physically, soil moisture affects soil temperature (water is good conductor of heat) and soil aeration.oil moisture. Soil moisture affects the soil biota in two ways. Biologically water is essential for life and for enzyme activity and metabolism and, is a solvent for biological nutrients and other chemicals. Physically, soil moisture affects soil temperature (water is good conductor of heat) and soil aeration.
Your blood is actually always red! Blood in your veins has very little oxygen and is a dark red color that looks almost blue when covered by your skin. Your arteries have bright red blood because it has a lot of oxygen in it that is being carried throughout your body to be used by tissues.
Yes and no. Human blood is always red, but depending on its oxygenation level, it is either bright red or dark red. Oxygenated blood is bright red, and blood low in oxygen is dark red. The myth saying that de-oxygenated blood is blue comes from many different reasons and sources, such as the color of our veins. Our veins are blue because the tissue they are made up of is blue, but the blood inside is still a shade of red. It is red because of of the iron in our blood.