Which of the following is an example of the atmosphere interacting with the biosphere? a)plants obtain minerals and nutrients from the soil. b)contaminants in lakes harm water, plants, and fish. c)smoke in air causes breathing difficulty in animals. d)water in a lake evaporates into the air on a sunny day.

The answer would be:

C. Smoke in air causes breathing difficulty in animals.

Read on if you want to know why:

When you talk about biosphere it is referring to the living organisms on Earth. Bio- means "life". When we talk about atmosphere on the other hand, we are referring to the air around us. Atmos- means "vaporous air" around us.

Using those as your clue, take the answer as an example of how to determine what spheres were interacting:

Smoke in air causes breathing difficulty in animals.

Air and animals (living organisms)

So in short we know that the atmosphere and biosphere are interacting in this scenario.