Its astrophysics and please aanswers all of them What gas ha

Its astrophysics and please aanswers all of them.

What gas have human beings greatly released into the Earth\'s atmosphere over the past two hundred years, and what effect is it having on the Earth\'s climate and why? What is the runaway greenhouse effect that happened on venus and how did Earth avoid the runaway greenhouse effect that made venus so hot? Carefully describe what the dynamo effect is, as applied to planets. What specific material inside of Jupiter causes its dynamo effect? Why is Jupiter\'s magnetic field so much stronger than Earth\'s? What technique do scientists use to determine the age of the solar system? What are the specific multiple pieces of evidence [provide specific numbers] that lead astronomers to conclude that the solar system formed about 4.6 billion years ago? Most extrasolar planets have been discovered by their gravitational effect on the star around which they orbit. Explain in detail how astronomers measure this effect to find extrasolar planets. What other methods have been used to detect extrasolar planets? What are the criteria for an object in our solar system to be a planet? Why are the vast majority of asteroids not planets? Why isn\'t Pluto a planet? Suppose we excite a low density gas and cause the gas to give off an emission spectrum, similar to the one we viewed in class. Describe in detail what is happening in the atoms of the gas to create the emission spectrum, and why the gas \"emits\" only specific emission lines, and not all of the colors of the rainbow. What is the evidence that lo is geologically active? What is the cause of the geological activity on lo? Why isn\'t Callis to geologically active?

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Jupiter has a large, complex, and intense magnetic field that is thought to arise from electrical currents in the rapidly spinning metallic hydrogen interior. The Earth has a strong magnetic field, but Jupiter\'s magnetic field at the tops of its clouds is 10 times stronger than that of the Earth.