Where are you traveling from and to?
D. living things in the biosphere.
The atmosphere contains all the air that plants and animals both use to survive so if there was a change within it, it would affect all living creatures in the biosphere.
The amount of carbon dioxide in water determines the pH of the water. The more CO2, the lower the pH, and vice versa.
In any ecosystem two factors interact together are abiotic factors and biotic factors. Abiotic factors include non-living such as soil, air, water and climatic factors ( temperature, humidity, rainfall or precipitation) whereas, biotic factors includes all the flora (plants) and fauna (animals). These two factors interact through food chains to function an ecosystem.