Which example describes biotic factors interacting with the environment? sunlight shining through a window
O oxygen circulating in the atmosphere
O rain forming puddles on the sidewalk
O butterflies resting on the flower of a plant

A butterfly is a biotic factor, that is resting on plant's flower describes its interaction with the environment. an organism, after its death, decaying on the road, also is an example describing the interaction between the biotic factors and the environment.

hope it helps.

oxygen circulating in the atmosphere

indium, and thallium have three electrons i think

since electrons are negative the answer is neagtaive