Topic 7 Keyword Quiz

Abiotic

• non-living part of a biome, includes the atmosphere, water, rock and soil.

• living part of a biome, made up from plant and animal life.

Biotic

• non-living part of a biome, includes the atmosphere, water, rock and soil.

• living part of a biome, made up from plant and animal life.

Atmosphere

• the layer of gases above the Earth’s surface.

• the uppermost layer of the Earth. It is cool and brittle. It includes the very top of the mantle, and above this the crust.

Lithosphere

• the layer of gases above the Earth’s surface.

• the uppermost layer of the Earth. It is cool and brittle. It includes the very top of the mantle, and above this the crust.

Biosphere

• the living layer of Earth between the lithosphere and atmosphere.

• living part of a biome, made up from plant and animal life.

• a collective term for all the ways humans benefit from ecosystems.

• the uppermost layer of the Earth. It is cool and brittle. It includes the very top of the mantle, and above this the crust.

Carbon sequestration

• removing carbon dioxide from the atmosphere and locking it up in biotic material.

• natural stores for carbon-containing chemical compounds, like carbon dioxide or methane.

• nutrients move between the biomass, litter and soil as part of a continuous cycle which keeps both plants and soil healthy.

• are materials found in the environment that are used by humans, including land, water, fossil fuels, rocks and minerals and biological resources like timber and fish.

Carbon sinks

• removing carbon dioxide from the atmosphere and locking it up in biotic material.

• are materials found in the environment that are used by humans, including land, water, fossil fuels, rocks and minerals and biological resources like timber and fish.

• nutrients move between the biomass, litter and soil as part of a continuous cycle which keeps both plants and soil healthy.

• natural stores for carbon-containing chemical compounds, like carbon dioxide or methane.

Nutrient Cycle

• natural stores for carbon-containing chemical compounds, like carbon dioxide or methane.

• removing carbon dioxide from the atmosphere and locking it up in biotic material.

• are materials found in the environment that are used by humans, including land, water, fossil fuels, rocks and minerals and biological resources like timber and fish.

• nutrients move between the biomass, litter and soil as part of a continuous cycle which keeps both plants and soil healthy.