The water cycle is a parameter of the hydrosphere that always remains constant. Life on Earth and its sustenance is possible because of this cycle. The continuous evaporation, condensation, and precipitation of water provides for the many processes involved in Earth's natural surroundings. Without the water cycle, life would cease to exist.
Answer :
Choice A i think
Answer:
The answer is 3. Double Helix.
traduce esto artículo
http://www1.lsbu.ac.uk/water/cellulose.html
