Question 6(multiple choice worth 4 points) (08.06 mc) which of the following statements best compares geothermal energy and the energy from natural gas based on their rates of renewal? natural gas has a slower rate because any amount extracted is far lower than its generation inside earth. natural gas has a faster rate because, being a carbon resource, it quickly replenishes as part of the carbon cycle. geothermal energy has a faster rate because a vast amount of heat energy is always present inside earth's core. geothermal energy has a slower rate because the water present below earth's surface cools down periodically.

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Iron reacts with oxygen in a chemical hand-warmer. how should this reaction be categorized? the correct answer is: a). as an exothermic process because it releases heat

Answer isno products will be formedyou need the required activation energy/good geometry  to be able to get a reaction going. (without favorable  geometry, more energy would be needed.)this is because molecules in a reaction have electrons surrounding them. as molecules approach one another, they start to slow down because of the like charge repulsion (electrons have a negative charge—like charges repel). the appropriate amount of energy is needed to overcome that mutual repulsion. without that amount of energy, the speed of the molecules will be slowed down to such an extent  they do not even collide; they end up rebounding from each other.