⟩ Two sets are called disjoint if there _____________ is the empty set. a) Union b) Difference c) Intersection d) Complement
c) Intersection
c) Intersection
What are the factors that for influencing photosynthesis also interfere with the gross primary productivity?
What is the formula of the net primary production (NPP)? How does NPP relate to the energy pyramids?
What are biogeochemical cycles?
What is the water cycle?
What is the carbon cycle?
What is the main biological process that consumes carbon dioxide?
How is carbon dioxide made by producers and consumers?
Why is the sun the "motor" of the water cycle?
What are fossil fuels?
What are the destinations of the organic material fabricated by the producers?