What are the two main greenhouse gases emitted from landfills?

A. VOX and CO2
B. VOX and CH4
C. H20 and CH4
D. CH4 and CO2


D. CH4 and CO2

Environmental & Atmospheric Sciences

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The concept of an ecocity revolves around

A. sustainability and livability. B. rapid urban development. C. government subsidies and grants. D. mass transportation services. E. upper to middle class populations.

Environmental & Atmospheric Sciences

World cities

A) did not exist until the twentieth century. B) were initially intimately involved with imperialism and colonialism. C) typically do not change in influence over time. D) would not include small cities like Brussels.

Environmental & Atmospheric Sciences

Diethyl ether can be made from ethanol. The reaction is: 2 C2H5OH(l) ? (C2H5)2O(l) + H2O(l) The percent yield of diethyl ether in one experiment was 94.0% and actual yield was 68.6 g. How much ethanol did the chemist use in this experiment?

A) 45.4 g B) 73.0 g C) 80.2 g D) 90.7 g

Environmental & Atmospheric Sciences

What information did NASA's Earth-observing satellite, AQUA, collect to learn about Earth's water cycle?

A) ?amount of phytoplankton and dissolved organic matter in the oceans B) ?samples of seafloor sediments C) ?changes in sea surface elevation D) ?ocean floor topography

Environmental & Atmospheric Sciences