Fill in the Blanks Symposium_ChisinauOnline version An activity by Mascaliuc Victoria 1 Earth is around for 4 . 5 billion years old . Climate has always been changing throughout all these years . Scientists have known about for about 200 years . In 1827 , the French mathematician Joseph Fourier learned that Earth ? s atmosphere from the sun like . Atmosphere is the air that surrounds the Earth . It is formed of different gases , including nitrogen , oxygen , argon , and carbon dioxide . Carbon dioxide is a gas that heat from the sun . The collected scientific data proved there is now about 10 percent more carbon dioxide than previously . The more carbon dioxide in the atmosphere , the hotter the temperatures become . The glaciers from the Himalaya mountains in Asia are stating to melt more rapidly . The Himalayas seven large Asian rivers . The melting of the glaciers will cause environmental problems such as and in Asia and Europe . Are you skeptic about it ?
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