What organism is likely to be found in siliceous ooze?
A) Foraminifera
B) Coccolithophore
C) Radiolarian
D) Pteropod
C
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The general chemical equation for photosynthesis is shown below. Through this reaction, is the carbon oxidized or reduced? How can you tell? 6 CO2 + 6H2O ? C6H12O6 + 6 O2
A. Reduced, since in carbon dioxide there are two oxygen atoms for every one carbon, but within the product, C6H12O6, (glucose), there is only one oxygen for every one carbon. B. Oxidized, since carbon is in the +4 oxidation state in CO2 but in the +6 oxidation state in the product, C6H12O6, glucose. C. Neither, since carbon does not change its oxidation state and is neither oxidized nor reduced. D. Both, since the carbon atoms within the glucose molecules display two different charge states.
An established language used habitually for communication by people whose native tongues are mutually incomprehensible is:
A. standard language. B. dialect. C. hierarchical diffusion. D. lingua franca.
What happened to the carbon dioxide in Earth’s early atmosphere?
a. It escaped to space. b. It remains in the atmosphere today. c. It moved to the stratosphere. d. It was incorporated into rocks and minerals. e. It was incorporated into ocean waters.
The atmospheric layer that is influenced by friction is called the friction layer or the ____________________ layer
Fill in the blank with correct word.