Earth's spheres are described by scientists as: 1. Intertwined
2. Interconnected
3. Isolated
4. Independent

2. Interconnected

Explanation:

Earth is made up of four major smaller systems called: land, water, living things, and air. These are the Earth's spheres, and they are all interconnected.

Source: https://gml.noaa.gov/education/info_activities/pdfs/TBI_earth_spheres.pdf

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation: