WILL MARK BRAINLIEST. Can someone help me wit des six questions? 1.) Define Sustainability. Type answer here

2.) Define Ecological Footprint. Type answer here

3.) Name two sustainable actions a person could take to reduce their ecological footprint. Type answer here

4.) What is a “watershed”? Type answer here

5.) Name 3 issues that could impact the water quality and/or health of organisms living in the Chesapeake Bay. Type answer here

6.) What is the correct order of the steps of Eutrophication? Type answer here
A.) Algae grows on the surface of the water
B.) Runoff containing high levels of nutrients enters a body of water
C.) Lack of dissolved oxygen leads to dead zones
D.) Algae blocks the sunlight from getting to underwater grasses and plants
E.)Algae and other aquatic plants die and are broken down by bacteria
F.) Bacteria use up dissolved oxygen in the water

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.    

b. read the phase at the intersection of any given temperature and pressure.

the alkaline earth metals (beryllium (be), magnesium (mg), calcium (ca), strontium (sr), barium (ba), and radium (ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. hopefully this ? i didn't fully understand the question