Renewable energy is renewable energy for many years?The teacher said that the forest is renewable energy, but set the forest regeneration stage is 10 years, then 10 years can make humans die many times, the teacher also said that bad, I want to know how to explain it, but in the land, in addition, I think that the water resources should be taken as well, but why the book says that the water resource is inexhaustible, or I drilled horn, you help me, thank you.
Is the water cycle on earth, but the water resource is that part of the water relative to human energy utilization, the total of the earth's water is very small, is estimated to be less than 1%, relative to the earth, water is inexhaustible, but a stage in one area of the water resources are limited.Look at the problem from a relative and dialectical point of view. If you want to "get", we can also say that solar energy is not renewable, because the solar system is the sun life, death explosion, of course not solar, but the volume is lost. Ha-ha！
Specific to your question, properly speaking, the forest is renewable resources, renewable energy is easy to confuse the concept of resources and energy, of course, as the forest biomass energy is also possible; the so-called renewable energy, is relative to the time scale of human history, such as solar, wind, biomass and so on, and need the geologic time scale in order to form the energy, such as coal, oil and natural gas, the total amount of reserves on earth is limited, it formed a speed much faster than the human use of speed, of course is "no longer".
You this "over" the spirit is worth promoting. Guess you are a student, if you learned the dialectics of philosophy of knowledge, a good understanding of what is to "renewable" concept, there is a problem considering the time scale, spatial scale, main aspects of the contradiction and contradictions can be transformed under certain conditions.
