Carbon is most commonly found in the ocean as this ion:
In the term, 'Phytoplankton', the prefix 'phyto' means what?
The largest user of freshwater worldwide is:
What is the smallest reservoir of the global hydrologic cycle?
Oxygen depleted zones of the oceans, such as the one at the mouth of the Mississippi RIver, are most likely caused by:
Nitrogen fixation will take place in field that are planted with which type of plant?
What organism regulates the flow of nitrogen in and out of its largest reservoir?
The process by which terrestrial organisms convert ammonia back into nitrates and nitrites and then into nitrogen gas and nitrous oxide gas- that rise into the atmospher
What is the chemical composition of nitrate?
The biggest contributor to excess nitrates in waterways is:
Approximately how much Carbon Dioxide does the atmosphere contain?
Which nutrient cycle does not have an atmospheric component?
Which nutrient cycle is mostly responsible for photochemical smog?
Process by which plants absorb nutrients through their roots
What process can decrease the amount of carbon dioxide in the troposphere?
The largest sink (reservoir) for phosphorus is:
What is the chemical formula for ammonia?
Nitrogen found in the troposphere is found as this form
Which element is considered to be the limited factor for terrestrial plant growth?
Which element is considered to be the limiting factor for phytoplankton growth?
Seawater changes pH from 6 to 5. This change is a factor of:
People want to save the environment because it is beautiful. This is what type of justification?
Who are the main producers in the marine food web?
Dissolved oxygen be higher in what type of water?
Warming of the atmosphere, causing ice sheets to melt, exposing the soil beneath, which absorbs more heat, which then causes more ice to melt, which causes more soil to be exposed, etc. This is an example of?
