Which of the following would inhibit the production of biogas in a fermentation chamber commonly used by small farmers?
A) Double the overall size of the fermentation chamber
B) Add equal parts of manure and water into the chamber and reseal the top
C) Leave the lid off of the top of the fermentation chamber
D) Collect biogas from an enclosed fermentation chamber
Question 2
The eruption of Mt. Pinatubo in the Philippines
A) affected only local, island ecosystems.
B) produced large amounts of sulfur dioxide but few aerosols.
C) produced aerosols that blocked the sun and resulted in a drop in global temperatures.
D) caught the human populations unaware, giving no prior signs of activity.
Herbivore biomass is positively correlated with net aboveground primary production.
Predicted effects of piscivores on planktivore, herbivore, and phytoplankton biomass and production
Pair Production and Annihilation
An Operant Chamber
Goiter as commonly seen in autoimmune thyroid disease.
British Iron Production, 1600–1870