That instant ... typically some moment on june 21 or 22 ... marks
the beginning of the northern hemisphere Summer.
The answer is. Soils play an important role in all of our natural ecological cycles—carbon, nitrogen, oxygen, water and nutrient.A handful of soil can contain billions of different organisms that play a critical role in soil quality to support plant growth.
Hemoglobin carry oxygen from lungs along with blood and it to various tissue for their metabolism ...then after it receive metabolic waste I.e. CO2 gas from it to lungs
