Percentage Proportions of gases in the atmosphere Oxygen

Percentage Proportions of gases in the atmosphere Oxygen Argon Carbon dioxide Algae and plants How oxygen increased The Earth’s early atmosphere Describe the evolution of the Earth’s atmosphere starting 1 billion years ago Earth and atmospheric science EDEXCEL TOPIC 8: Fuels and Earth science 2 Reducing carbon dioxide in the atmosphere Formation of sedimentary rocks and fossil fuels The total amount of greenhouse gases emitted over the full life cycle of a product/event. This can be reduced by reducing emissions of carbon dioxide and methane. Carbon dioxide concentration There is a correlation between atmospheric carbon dioxide levels, fossil fuel usage and global temperature change Algae and plants reduce carbon dioxide by ______________________________________________________ How do sedimentary rocks contribute to decreasing carbon dioxide levels? What is the greenhouse effect? Earth and atmospheric science What’s the test for oxygen Write the balanced equation for photosynthesis Greenhouse gases Nitrogen How do these contribute to the changing atmosphere? How carbon dioxide decreased Gas Human activities and greenhouse gases Effects of climate change Why are there errors with these measurements ? : better hope – brighter future What human activities contribute to climate change? And what are the consequences of climate change?