I believe the answer might be A
An example of an ecosystem that benefits people could be the ocean.
The ocean regulates the temperature of the earth, allowing a more comfortable place for people to live.
Hope this helps!
During mission planning, hazards are identified by the applying <span>mission, enemy, terrain, troops, time and civilians</span> framework.
This framework is usually referred to as METT-TC.
This framework is set to help military commander prioritize what they need to analyze during the planning of a mission.
Usually the civilian analysis is considered when the mission is to take place in an urban terrain.
The cell theory of course had an important impact on later scientific discoveries as many different hypothesis and scientific discoveries were derived and concluded with the help of basics from this theory.
Answer:
Ocean phytoplankton produce almost half of earth's atmospheric oxygen
