An ecosystem that does not depend on sunlight for its energy source

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

What would happen if the krill were removed from the food web