When the barge enters the northern most of the river, the southward current is 0.67 m/s. how will the barge be affected?

you can have just about every answer you can think of

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.