Please help!
READ EACH STATEMENT. WRITE YOUR ANSWER IN THE TEXTBOX.
Carolyn and Ken are learning about the geosphere, atmosphere, biosphere, and hydrosphere. They put sand in a small swimming pool. They dug a hole in the middle and filled the hole with water. They turned a fan on and watched how the water and sand changed.
Explain what the sand, water, and fan represent in the model.
Explain the interactions the model shows between Earth’s systems.
Describe how they could add the biosphere to the model.