If any one can answers any of these earth science Q's it would be very much aprecciated, thanks.?

How did Earths thick 2nd atmosphere (composed of gases such carbon dioxide, water, methane, ammonia and nitrogen) transform into Earths 3rd atmosphere, which was primarily nitrogen?








A.) Intense heating caused carbon dioxide, ammonia and water to chemically react and form non-volatile substances.





B). As autotrophs evolved, the photosynthetic processes they carried out reduced the carbon dioxide concentrations in the atmosphere.





C).The high density of the 2nd atmosphere caused carbon dioxide and methane molecules to become trapped in surface sediments.





D). Warm precipitation selectively dissolved gases other than nitrogen, which dissolves more readily in cold water





Which of the following gases can vary significantly in concentration throughout Earths atmosphere?





A). argon





B). nitrogen





C). water vapor





D). oxygen





Oxygen-producing ___ converted light energy, carbon dioxide and water to oxygen 3 billion years ago, paving the way for more complex forms of life on Earth.





A). trees





B). fungi





C). cyanobacteria





D). volcanoes








The troposphere is characterized by








A). fewer fluctuations in temperature.





B). continuously moving convection currents.





C). lack of water vapor.





D). higher temperatures at the top








A high-pressure area developing over an industrialized area located in a mountain valley





A). forces ozone produced at the surface by industrial activity high into the atmosphere





B). will cause an increase in concentrations of greenhouse gases closer to the Earths surface





C). will cause temperatures in the valley community to decrease





D). All of these are true.








The tilt of the Earth on its axis as it orbits the Sun





A). contributes to unequal heating of the Earths surface.





B). contributes to seasonal variations in climate.





C). contributes to the development of large-scale convection currents.





D.) All of these are true.








In the various layers of Earths atmosphere, temperature decreases with atmospheric pressure because





A). gas particles are less affected by gravity at higher altitudes, spreading farther apart and losing their heat.





gas particles are less affected by gravity at higher altitudes, B).spreading farther apart and transferring less of their heat energy to other particles.





C).gas particles are less affected by gravity at higher altitudes, moving closer together and giving off less heat.





D).gas particles are more affected by gravity at higher altitudes, moving closer together and giving off less heat.








El Nio and La Nia have a significant influence on





A). the amount of sunlight that reaches the Earth





B). deep ocean temperatures in the polar region.





C). the amount of sunlight that reaches the Earth.





D). the latitudes of the polar and subtropical jet streams.








When a large asteroid collided with the Earth 250 mya, huge amounts of particulate matter became suspended in the atmosphere. This affected Earth锟絪 climate and biosphere in all of the following ways EXCEPT





A). altered surface temperatures on Earth.





B). normalized weather patterns, therefore increasing the habitat ranges for most species.





C). caused increased rain, since water vapor readily condenses on atmospheric dust.





D). reduced the available light needed to drive photosynthesis|||Wow, you have a lot of homework. Asking in Earth Sciences might make a lot more sense.





Not sure how that will help you learn anything, mind you...|||aha well hello there fellow roads.advancedacademics student, i hate this midterm exam

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