What is the net primary productivity of an algal bed if the gross primary productivity in an algal bed is 7 kcal/m2/yr and respiration is 3 kcal/m2/yr?

Want free brainliest + free points? answer this correctly and i got you the majority of collisions are preventable through a. good defensive driving habits b. bad defensive driving habits c. good luck d. new technologies

The torque output of an engine is usually measured in the units of a rpm b bhp c foot pounds d feet per pound

Among the following environmental factors, which does not have a long-term impact on the composition of a region's soil? a. kinds of crops grown b. types of fungi present c. topography of the landscape d. variety of species of mammals e. number of freezes occurring annually