Figure it out yourself
Water is the necessary device for the survival of life in this earth
reproduction
Reproduction
as because the gases on the earth helped the survival........and so it could have been said that earth have life
Reproduction is different from other life functions in that it is not necessary for the survival of a single person but is necessary for the survival of a species. Reproduction also generally involves two people or organisms.
Reproduction
The sun!
Reproduction. An individual organism does not have to reproduce in order to survive but if the organisms did not produce then the species would die out after just a single generation.
Water cycles recycle water which is important for survival of an organism. hence, it preserves life on earth.
protons
They do not. While gold is sought after for its value and rarity, it is not necessary for life/ survival.
Ozone depletion causes increase in temperature of the earth. It is harmful for the survival of life on earth.