I found the answer to this question by myself.
The purpose of life is balance of Earth's eco system.
Have you noticed all walking creatures of Earth has a nose,fish has gills.We absorb the oxygen produced by plants and produce CO2.This creates the most important cycle that keep our planet from Global Warming.The O2 and CO2 has to remain in a good ratio.
[video=youtube;gbRpzt436x4]https://www.youtube.com/watch?v=gbRpzt436x4[/video]
CO2 warms the earth but too much CO2 keeps more Suns heat in Earth,so we have plants which absorb CO2 to produce O2.
Nose is reason we have a heart and makes us alive,Robots have no nose so they have no purpose to Earth.
Plants,Humans,Animals,Bacteria are all created in a purpose to balence oxygen carbon-di-oxide ratio and Virus diseases to destroy any thing that stops it.Earth is the real government we all serve,it gives us land,oxygen,water and all we need to live.
Oceans create more O2 and CO2 than land if we put toxic waste and plastic in Ocean it will change the production ratio of oxygen and might be the reason for all tornadoes in america.
Mars do not have any plants or water like Earth even with similar conditions because Mars hate life,it may let robots live there but it will be harder to reform Mars atmosphere or start agriculture than it is on Earth.As far as we know Earth is the only planet we know which wanted to create life (an alien spore even with favorable conditions won't grow unless the embryo called earth allowed it) which makes Earth special and most necessary to protect
Earth is special humans are not,Humans are as special as the bacteria.Some times we become to damage Earths body like a cancer cell so Earth creates its white blood cells called Ebola or Small pox to destroy the problem.Old cibvilizations in Africa,India,Red Indians all knew this truth except destructive muslims and europeans who thought war was the mesage of life.Purpose of our life is balence of environment which we used to do indirectly without knowledge by breathing (this is why all animals and similar lifes has nose and no life is born without a nose,leaves of plants are also functions like a nose).When suns heat increase earth used to balance heat by evolving life but back then earth had a lot of time for it. but now it is having a little time because of Industry made pollution affecting climate, so more storms tornados snows rains and heat in different areas in a unpredictable manner.
We are not using science to solve problems but creating more problems.In the times with out science we had only few simple problems,how to store food for winter like that.Now we need cyber security,latest anti virus patch,copyright laws with the old food problems which is still not solved after so much advancement in science (for poor,because of fridge we don't eat fresh food,preservatives damages health).
We live for earth,we can only yolo after we fulfil our daily duty to earth.
humans are not special,earth is special.Robots can never balance oxygen CO2 ratio,if we give them a engine which uses oxygen to produce CO2 for energy they will no longer need be our slaves.
Sun is the devil that give cancer and Earth is the God,they both exists together,life cant exists with out both,Sun is father that gave energy to life on earth and Earth is mother.We eat plants as food which grows absorbing soil so we are also soil.Humans are big bacteria's nothing more.
We need to stop cutting trees,stop wars,destroying forests for mining or we will make Earth in to another Mars,the way we destroy Earth's resources believing we will one day colonise Mars will actually only kill us all.If you read our history you can find plagues occurring after every big wars.
Our purpose is the balance of world,Protect Earth.There is no individual or human purpose for life,sure you can believe a fictional story like Bible,Kuran,Mahabharata but they have no different than believing Harry potter created life on Earth by using Time-Turner to go back 300 million years.
