what areas (lake, pond, stream) would you expect to have the highest rate of productivity? The lowest? Why

As the level of carbon dioxide in the atmosphere increases, how will primary productivity impacted? How does this impact populations of primary consumers?

What is the reason for highest biomass in aquatic ecosystem?

Of the following benefits, which one is the main potential benefit of water markets?  Group of answer choices A. More water is available for lower-income households B. More water is available for agricultural uses C. Water is used for its most highly-valued purposes D.There will be no more water forgery

How would the growth rate pattern be affected by infinite resources?

Explain how streams can cleanse themselves ofoxygen-demanding wastes and how these cleansing processes can be overwhelmed. What is wastewater? Describe the state of stream pollution inmore-developed and less-developed countries.Give two reasons why lakes and reservoirs cannotcleanse themselves of pollutants very well. Define and distinguish between eutrophication and cultural eutrophication. List three ways to prevent orreduce cultural eutrophication. What are the majorsources of groundwater contamination in the UnitedStates? Explain why groundwater cannot cleanseitself very well. List three ways to prevent or cleanup groundwater contamination. List some ways topurify drinking water. Describe the purification ofdrinking water in more-developed and less-developedcountries. Describe environmental problems causedby the widespread use of bottled water. How are lawsused to protect drinking water in the United States?List three ways to strengthen the U.S. Safe DrinkingWater Act. Describe how…

course/2705839563/materials/link/view/4918512902 Tonger needed by the group. In a community that has 4 trophic levels, what biomass of primary producers is necessary to maintain a tertiary consumer biomass of 1.78 kg/m^2? O 17.80 kg/m*2 O 178 kg/m*2 O 1780 kg/m^2 O 17800 kg/m^2 Prairie dogs are small mammals that live in large colonies in burrows in the ground. Prairie dogs that are near their own relatives when a predator approaches are much more likely to issue a warning bark than those that are near unrelated prairie dogs. The prairie dogs that hear a warning bark are more likely to hide in their burrows than to remain above ground. However, the prairie dog that gives the warning bark is putting itself at increased risk of being

what would you expect to be primary producers in an oligotrophic lake

AP Environmental Science Primary Productivity Problems   Net Primary Productivity efficiency can be calculated for terrestrial producers when values for insolation energy, respiration loss and gross productivity are known. Use the equations below to answer the following problems:   Net Primary Productivity = Gross Productivity – Respiration Loss   Efficiency = .          NPP           . X 100                      Insolation Energy   In a rice paddy in Southeast Asia, the insolation energy is 6,000,000 calories/m2/day. The gross productivity of the rice is 0.012 grams/cm2/day, and the respiration loss is 20 percent. One gram of rice is equivalent to 1000 calories.   Calculate the net primary productivity of the rice.               Find the efficiency of photosynthesis by the rice.   Could you mostly help me set it up and find it? So I can learn how to do it.

Air, Water and Soil are _______ factors of an ecosystem