When water evaporates from the surface of a lake, what two spheres are interacting?
When volcanoes erupt, dust and ash particles spread through much of the air blocking the sun. Which two spheres are interacting?
A hurricane is formed when pressure systems in the atmosphere collide over the ocean and begin rotating, releasing a huge amount of precipitation and strong winds. What spheres are involved in the creation of a hurricane?
When plants draw nutrients from the soil, the interaction is between which two spheres?
Polar bears living and hunting on the ice is an example of which two spheres interacting?