Which of the Earth's spheres is made up of the gases and air that surround the Earth and sustain life? A. the hydrosphere
B. the lithosphere
C. the biosphere
D. the atmosphere
Please select the best answer from the choices provided
B
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Religious conflict in northern ireland started with a) cultural differences resulting from viking invasions around 800 b) england’s split from the catholic church in the 1500s c) rebellions in ireland between 1916 and 1921 d) the norman invasion of england in 1066

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

In russia which of these challenges affects the transportation of both petroleum products and other goods?