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== Answer

  • Movement: all or part of the living object can move
  • Respiration: living things obtain energy from food during respiration
  • Sense the environment: living things respond to changes in their environment
  • Circulation: living things circulate gases and other chemicals
  • Growth: living things grow
  • Reproduction: living things produce new offspring
  • Excretion: living things are able to get rid of waste products from their bodies
  • Nutrition: living things can make their own food or obtain it by eating other living or once-living (dead) things.

whilst the cloud can move, it does not do any of the other therfore it is non-living.

Note that these criteria are completely arbitrary and many other definitions of life exist. Currently there are NO real and undisputed characteristics that all living things share, and there is no way to prove such a list. This cannot be proven until all the other mysteries of life have (such as the origination of cells/viruses) been proven, something that will probably never happen in the next several centuries.

The answer would thus be: Whatever you think.

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14y ago

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