At first instance the answer is a big NO. Remember mass cannot be created nor it can be destroyed it can only be transformed. Now in the initial stages, before this unique planet could become life supporting and acquired its present planetary orbit as part of our solar system, some mass from it could have escaped out of its "then" gravitational pull resulting into satellites or canabilised/captured by some other nearby proto-planets or mass with greater gravitational pull. Similarly the earth must have acquired some mass by capturing near bu masses. So in the initial phase in the history of earth its mass was in flux. Essentially this was the period when the earth was in the process of formation as an entity soon after the big bang. This period is say from 4,600 million years to as late as about 1500 million years, when the conditions on earth became conducive to support life. Re- constitution of matter or elements could not have changed the initial mass of earth since then except the addition from the extra terrestrial mass of meteorites or burnt up meteors within the gravitational field of earth, which ofcourse can be ignored. Biotic population increase or degradation of abiotic matter like minerals and rocks or even formation of new crust at the mid-oceanic ridges or its consumption at the subduction sites is only re-distribution of matter than creation or destruction of matter. Hence the total gross mass of earth would not change, more people on earth does not mean increase of mass of earth. Also expansion of earth since its formation, as some geoscientists believe, would not change its mass, you know the inter-relation beween mass-volume and density, similarly if you beleive in plate tectonics, the mass would not change- the new crust forms from the mass witin the earth and is consumend wihin the earth. Death of life forms does not destroy the constituent element it only re-distribute them as different phases of mass (solid, gas and liquid).
All biotic and abiotic mass on earth or in its interior is composed of elements that came into existence when the earth was formed from a big bang or from some energy-mass conversion or transformation event. This conversion is like a endless pulley and would continue till another "big bang"happens some day to change the present mass of the earth? or suddenly if "g" of earth changes, the weight of earth would change!
thnks
2007-01-04 13:50:14
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answer #1
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answered by mandira_nk 4
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The weight of the Earth is constantly changing, but only in tiny, insignificant amounts. Since the Sun provides energy in the form of electromagnetic radiation, the Earth takes on mass in this way, and may lose mass this way also, from our city lights at night for instance. The actual weight of the Earth changes independently of this also, as the Earth's orbit around the Sun is elliptical rather than circular, meaning it spends some times further from the Sun than others, and hence experiences less gravitational attraction.
The weight of the Earth does not, however, change with population increase/decrease, as humans are made from existing materials on Earth =P
2007-01-04 12:33:43
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answer #2
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answered by DiscoMouse 1
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When the population increases, it doesn't change the weight of our world because there is no gain of mass.
HOWEVER, the weight of our world does change when dust and meteors from space come to Earth because this adds mass.
2007-01-04 12:31:43
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answer #3
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answered by Anonymous
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The ole intake - vs -output Theorem,the earth does gain mass continuously thru gravitational pull,that is all matter that comes close to its orbit is pulled down into the atmosphere.As for the population consider a hundred pound person eating five tons of food during their lifespan just a example, but something to consider.
2007-01-04 12:40:48
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answer #4
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answered by Rio 6
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No. Our bodies are made up of materials coming from the Earth's ecosystem, so we are made up of foods that are already part of the earth, and when we die, we will go back into the ecosystem again. The earth loses a small amount of weight as the upper atmosphere slowly bleeds into space. Similarly, we gain weight when meteors and other space objects impact the earth.
2007-01-04 12:30:11
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answer #5
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answered by Frank 3
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All of the life on this planet is part of this planet's mass. All Life on this planet is earth matter that constructs and deconstructs over and over again. Subtle changes certainly occur in the total mass due to dust and other matter from space striking this planet and occasionally leaving this planet, but not a significant amount.
2007-01-04 12:33:15
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answer #6
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answered by Anonymous
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truthfully and this replaced only makes modern human just about animals. I advise i do no longer see people who think of impressive anymore. seem what's going on to our environment, how the government is corrupted, corporates unregulated. it somewhat is the reason little ones are eating undesirable and oil industries blinded our imaginitive and prescient with smoke and dirt interior the air. So lots replaced yet small part of this is assisting.
2016-11-26 19:55:05
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answer #7
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answered by rigel 4
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