What are his observations? We can’t answer this without knowing his observations if those are the conclusions. Please provide the rest of the information and I can answer.
1. Why hydrosphere is important for the living organisms?
2. Why atmosphere is important for the living organisms?
3. Why lithosphere is important for the living organisms?
4. Why biosphere is important for the living organisms?
These are the four questions related to the subsystem of the earth. There are four subsystem of the earth named "lithosphere" which means the land, "hydrosphere" which means water, "biosphere" which means living things and "atmosphere" which means air.
All these subsystems are important for the survival of living creatures on the planet earth because all living organisms depends on these four subsystem.
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"Recitative" is the opposite of aria.
<u>Answer:</u> Option D
<u>Explanation:</u>
Musical oration of the kind common in the narrative and dialog sections of the opera and the oratorio, sung at the rhythm of the regular speech with several words along the same line is understood as Recitative.
While an aria is a long song that is performed by a single instrument and normally appears in an opera. It is an Italian word which means "air" in the 18th century. An artist would sing a song that would convey his or her emotions The aria had more interest in music than the recitative.
I is answer. Don't open link. It is most likeky unsafe.