Summary#4 Lifes of Cycles

There are many types of  cycles of life. But the most importants are water cycle, carbon cycle, and nitrogen cycle. The water cycle is the continuous movement of water between Earth´s surface and the air, it starts with the evaporation, next with the condensation  that includes precipitation, then the feezing and finally the melting  and again the evaporation. The carbon cycle  includes the plants the living things and some gases like carbon dioxide and oxygen.First, the humans, fire and cars and other things that contains CO2 give CO2 to the plants that plants need to grow, then the plants give us O2 that is their waste that we need to live and continues the process.And finally, the nitrogen cycle, the nitrogen is one of the most abundant gas on the air and trhe most needed to us. It starts with the air that goes to the soil or roots and it mix with the ammonia and then some bacterias can use nitrogen from the air to make nitrogen-containing substances called nitrites and other bacterias can turn nitrites to nitrates. And then the nitrogen compounds goes to the air other time and continues the cycle.

nitrogen cycle

                                                                                           


carbon cycle



water cycle