Which of the following describes the most likely way in which two water molecules will interact? A. A covalent bond will form between the hydrogen of one water molecule and the oxygen of the other water molecule.

B. An ionic bond will form between the oxygens in each water molecule.

C. A metallic bond will form between the hydrogens in each water molecule.

D. A hydrogen bond will form between the hydrogen atom of one water molecule and the oxygen atom of the other water molecule.

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

allowed for the prediction of the properties of missing elements.