Process: - Oxygen enters the body through the mouth or nose - The oxygen travels into the lungs - The oxygen binds to hemoglobin proteins within erythrocytes (red blood cells) - The erythrocytes are pumped through the body by the heart - All cells receive the oxygen.  Question: suppose a person over exercises happens, how will it affect they may become light headed.  - A: more - B: less - C: no effect
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Answer: A


Process: - Human beings burn fossil fuels (oil, gas, etc.) - Carbon dioxide from the burning fossil fuels enter the atmosphere - The make-up of the atmosphere changes - Some energy from the sun cannot escape back through the changed atmosphere - The earth begins to heat because of the extra trapped energy - Human beings cut down trees - Human beings do not re-plant the trees - Trees cannot help take the extra carbon dioxide from the atmosphere - The extra trapped energy starts to change the earth&#x27;s short term weather - Eventually the long-term climate patterns start to change -   Question: suppose less conservation occurs happens, how will it affect more heat occurs.  - A: more - B: less - C: no effect
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Answer: A


Process: - Coal is heated in the boiler - The water tank over the boiler is heated - Creates steam - The steam is funneled to the piston - Piston uses the steam as energy - The piston causes the crankshaft to move.  Question: suppose there is no coal available happens, how will it affect MORE power produced by the steam engine.  - A: more - B: less - C: no effect
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Answer:
B