Discuss the biogeochemical cycles of water, carbon, nitrogen, phosphorus, and sulfur

1) What is the lowest temperature that biogas can be produced in a biodigester from dog poop? Give an approximate answer. 2) How can you keep a greenhouse structure to maintain its optimal temperature in the winter seasons?

Our review of biogeochemical cycles underscores the importance of primaryproduction to ecosystems and biomes, but what controls rates of primary production?

Give a pair of sedimentary type of biogeochemical cycle.

a) Each trophic level, on average, will move 10% of the energy tied up in molecules to the next trophic level. How much of the energy from the sun is actually brought in to the first trophic level? b) When the producers convert energy and tie it up in the first trophic level, it is brought in as heat. True or false? c) Which of the following are true about ecosystems? Check all that apply. They contain both living and nonliving components.They contain both living and nonliving components. There is a transfer of energy through the system and some energy is lost as heat energy.There is a transfer of energy through the system and some energy is lost as heat energy. Nutrients repeatedly cycle through the ecosystem.Nutrients repeatedly cycle through the ecosystem. They represent the lowest level of biological organization.They represent the lowest level of biological organization. The ultimate source of energy for most ecosystems is organic molecules.

What are two major actively used natural pools in the global Nitrogen cycle?

Define carbon cycle

What are the basic needs of aquatic biota?

Make a diagramatic representation of carbon cycle.

Why are nitrogen-containing molecules limited in the biosphere? Give two reasons.