6. Atmosphere is the mixture of gases that surrounds the planet. Nitrogen is the most abundant gases which comprises of how many percent? b. 21 % c. 50% d. 0.8 % a. 78 % 7. Earth's subsystem includes all life forms, even organic matter and where interactions between organisms takes place. What earth subsystem is described? a. Biosphere b. Geosphere c. Atmosphere d. Hydrosphere

Applications and Investigations in Earth Science (9th Edition)
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ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
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6. Atmosphere is the mixture of gases that surrounds the planet. Nitrogen is the most
abundant gases which comprises of how many percent?
a. 78 %
7. Earth's subsystem includes all life forms, even organic matter and where
interactions between organisms takes place. What earth subsystem is described?
a. Biosphere
b. 21 %
c. 50%
d. 0.8 %
b. Geosphere
c. Atmosphere
d. Hydrosphere
Transcribed Image Text:6. Atmosphere is the mixture of gases that surrounds the planet. Nitrogen is the most abundant gases which comprises of how many percent? a. 78 % 7. Earth's subsystem includes all life forms, even organic matter and where interactions between organisms takes place. What earth subsystem is described? a. Biosphere b. 21 % c. 50% d. 0.8 % b. Geosphere c. Atmosphere d. Hydrosphere
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