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Oxygen - Gas chemistry - (CCEA) - BBC Bitesize
WebWithout greenhouse gases in its atmosphere, the Earth would be about 18°C colder on average than it is now. That would make it too cold to support life as we know it. Greenhouse gases present... WebThe Earth formed approximately 4.6 billion years ago. Scientists cannot be certain about what gases made up the Earth’s early atmosphere. Ideas about how the atmosphere … how to store fresh baked banana bread
Emission and absorption of infrared radiation - BBC Bitesize
WebThe atmosphere is a mixture of gases. The atmosphere is mostly nitrogen (approximately 80%) and oxygen (approximately 20%). The remaining gases are found in much smaller … WebSome thermal energy from the Earth’s surface escapes into space. If too much thermal energy escaped, the planet would be very cold. However some gases in the atmosphere, called greenhouse... WebThe Earth is the source of all the resources we need, such as metals, plastics and fuels. Humans are very successful living things. We compete with other organisms for many natural resources.... how to store fresh baked cupcakes