Question

A student is hiking through a marsh taking pictures for science class. Which of the following would most likely be an example of human impact on Earth?
a drainage ditch to drain water A.
В. river water eroding a river bank an
eagle nest made of dead branches C.
D. a group of dragonflies sitting on a rock ​

Answer 1

A:  A drainage ditch to drain water

Answer 2

A. A drainage ditch to drain water