Science Earth Atmosphere

This means the layers of gases that surround the Earth.

4.5 - 4.6 Billion years old

Methane (CH4), Carbon dioxide (CO2), Nitrogen Dioxide (N2), and Ammonia (NH3)

Water vapour cooled and condensed to form the oceans

95%

Algae and plants photosynthesis (This increased oxygen in the atmosphere and decreased carbon dioxide)

Because humans weren’t there and there aren’t direct measurements found.

Coal, Oil, Natural gas and peat.

A food group of sugars, starch and cellulose.

Recycling carbon.

A store of carbon that isn’t in the atmosphere (e.g the ocean)

Burning the supply of oxygen to produce water and carbon dioxide.

Process used by plants to make glucose and oxygen from carbon dioxide and water

Chemical reaction in the mitochondria to release energy from glucose and oxygen.

Water like rivers, oceans, lakes, a small amount is in the air (carbon dioxide) and in carbohydrates and other large molecules in all living organisms.

To make carbohydrates, proteins, fats and DNA which is eaten by consumers.

Gaseous compound of carbon and oxygen. By the products of respiration and needed for photosynthesis.

The gases that are responsible for global warming e.g carbon dioxide, methane and nitrous oxide and water vapour.

The retention of heat in the atmosphere is caused by the buildup of greenhouse gases.

Colourless greenhouse gas

A cloud of liquid particles

14 degrees celsius

Burning coal which releases carbon dioxide. (We use coal for things like transport or electricity

Average weather conditions over long periods and large areas