B.Electromagnetic
explanation:
The answer is A. waterfall
To be considered as an engine , it should be a Man-made objects that could be used to produce power that creates motions.
From all the options above could be used to produce such power, but the waterfall is not made by mandkind
The correct answer is TRUE. Organisms produce their own energy or provide energy for other organisms in a food chain. Many different organisms can be found in the Amazon rainforest <span>in South America. Organisms in this biome include a variety of trees, plants, insects, fish, birds, reptiles, and mammals. The jaguar and anaconda are among the largest predators found in the Amazon.</span>