earth day

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Across
  1. 3. It is the energy obtained from the existing energy flow in continuous natural processes.
  2. 4. It is a science that studies all living things in nature, including humans.
  3. 5. What is it called when the wastes that can be reused are converted into secondary raw materials by undergoing various physical and/or chemical processes and included in the production process again.
Down
  1. 1. what is the name of the test prepared by google to draw attention to earth day
  2. 2. The earth warms up as a result of the earth's reflection of the sun's rays rather than the sun's rays falling on the earth.