Which of the following can act like a long-term "thermostat" that helps keep Earth's average temperature fairly stable?
A) radioactive elements trapped in the Earth's mantle
B) heat stored in the Earth's magnetosphere
C) heat stored in the Earth's liquid core
D) the carbon dioxide cycle that moves carbon dioxide between Earth's atmosphere, oceans, and rock
D) the carbon dioxide cycle that moves carbon dioxide between Earth's atmosphere, oceans, and rock
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In which of the following cases would the tragedy of the commons apply?
a. common use of land for grazing of sheep b. use of air in industrial processes c. use of water for power plant cooling d. Tragedy of the commons applies in all the above cases. e. Tragedy of the commons does not apply in any of the above cases.
A 0.30 % C carbon steel is heated
Which of the following is true about the seasons on Uranus?
A) The seasons on Uranus are not unlike those on Earth or Mars. B) The Uranian rotation axis produces some extreme seasonal effects. C) Like Jupiter, Uranus has little tilt, with its equator always facing the Sun. D) From the Uranian equator, the Sun would remain stationary all the time. E) Uranus' weather will become less turbulent as equinox approaches in 2049.
If nitrogen, Image, were pumped into your lungs at high pressure, what would happen to its solubility in your blood stream?
A) The greater the pressure, the greater the solubility. B) The greater the pressure, the lower the solubility. C) You cannot change solubility of a substance by changing the pressure. D) Nitrogen is not soluble in your blood.