Tony the trout lives in an Alaskan stream. He wants to see if more arthropods (his preferred food) live closer to the falls or downstream. He records the number of arthropods at several locations, at varying distances from the falls. What is the dependent variable? * Arthropod number Level of the water O The waterfall The stream location

the anthropod level is dependent upon the distance

Explanation:

its first and third is your answer i did the qustion the fourth isnt right

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.