Aboat crosses a river 2km wide at 20km/h relative to the surface of the water. the river is moving at 6km/h downstream relative to the bank of the river.

Amethod of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.

Then the answer would be d then

An example of environmentally learned behavior is aggressive behavior, i grew up seeing many aggressive people in my life and a slowly started picking up those traits however i was able to call myself out and not give in to those traits.