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  • Renewable resources like water or fish are replenished naturally.
  • Non-renewable resources like oil or iron ore have a limited stock that cannot be replenished usually
  • An ecosystem is generally defined as a community of organisms living in a particular environment and the physical elements in that environment with which they interact.
  • Tropical areas are rich in biological diversity than other habitats.
  • Green plants are called producers because they can manufacture food from inorganic raw materials.
  • A consumer depends on herbivores, carnivores, parasites, and scavengers for its nutrition
  • Clearing of land may result in soil erosion and the eventual loss of top soil (soil erosion).
  • Wastewater and sewage can also have a bad impact on the marine environment.
  • In the stratosphere, where ozone exists naturally, it blocks out the sun's ultraviolet rays and is a lifesaver.
  • Garbage disposal is an individual responsibility to keep our environment clean.

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