Option D is the correct answer. Demographics of a population are different aspects of their characteristics, such as age.
Global climate change is when a change in weather appears in an area where it normally wouldn't. This is normally a change in the temperature, precipitation and/or wind. An example would be the ice caps melting in Antarctica because heat is making its way in where it should not be.
Based on the meteorological analysis, the natural process in which the massive amount of material in the atmosphere halt or stops is known as the "GreenHouse Effect."
This is because GreenHouse Effect is a natural process that occurs in the earth's atmosphere.
The GreenHouse Effect occurs when Sun’s radiation comes in contact with the Earth’s atmosphere.
During the contact, some of the massive solar radiation is stopped or halted and returned to space.
The rest of this massive solar radiation, however, is taken and re-radiated by the greenhouse gases.
Greenhouse gases include water vapor, carbon dioxide, methane, ozone, etc.
Hence, in this case, it is considered that GreenHouse Effect is a significant occurrence or process in the Earth's existence.
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The answer is aviation factory