Earth

• The main greenhouse gases are

  -Carbon dioxide

  -Methane

  -Water vapour
• The Earth atmosphere is made of 4 main gases these are

  -Oxygen -21%

  -Nitrogen -78%

  -Carbon Dioxide -0.04%

  -Argon -1%
• Some Climate change conseqeuences are Extreme weather, Extinction/loss of biodiversity, food shortages, ice caps melting which leads to sea levels rising and habitat loss
• The 2 main cause of global warming is burning fossils fuels beacause it release CO2 and deforestation beacuse it prevents the absorbtion of CO2
• Complete Combustion- fuel + oxygen --> Carbon dioxide + water
• Incomplete Combustion- fuel + oxygen --> Carbon monoxide + water
• Incomplete combustion only happens when there is not enough oxygen
• Biodiversity- the range of different species on Earth, including plants, animals and microorganisms
• Endangered species- When there are only a few memebers of species left
• Extintion- is the complete loss off all members of a species
• Some ways to preserve biodiversity are:

  -Seed bank

  -Gene back

  -Replant trees

  -Restore habitat

  -Captive breeding

  -moniter species in the wild
• Factors that cause extintion are:

  -Hunting/poaching

  -Introduced species

  -Climate change

  -Meteorite impact

  -Volcanism

  -Lack of food

  -Habitat destructions
• Evolution- the gradual change of a species over millions of years