Biodiversity
Water Systems
Soil Systems
Atmospheric Syst
Human Systems
100

The range of different places and different environmental conditions within one area

What is "habitat diversity?"the range of different places and different environmental conditions within one area also known as?

100

The type of radiation that drives the hydrological cycle.

What is solar radiation?

100

The part of a soil system made of decomposing plant and animal matter.

What is humus?
100

The most abundant gas in the Earths atmosphere.

What is Nitrogen?

100

The number of births per thousand individuals in a population per year

What is Crude Birth Rate?

200

The gradual change in the genetic character of populations over many generations?

What is evolution?

200

Movement of water and heat energy by ocean circulation.

What is the "ocean conveyor belt"?

200

A process that takes away soil.

What is erosion?

200

The layer of the atmosphere  that includes most clouds and contributes most to the albedo effect of the planet.

What is the troposphere?

200

The model that shows the characteristics of human populations and how they change over time.

What is the demographic transition?

300

D can be used to compare the biodiversity of two similar habitats. 

What is the Simpson diversity index?

300

An underground store of fresh water.

What is an aquifer?

300

A chemical that is added to soil to replace nutrients that have been removed.

What is fertiliser?

300

A layer of gas in the atmosphere that protects the Earths surface from harmful UV radiation

What is stratospheric ozone?

300

In this stage of the demographic transition model, both birth and death rates are high, resulting in a relatively stable and low population growth.

What is stage 1 of the DTM?

400

A species conservation status is determined by its population size, degree of specialisation, distribution, reproductive potential and behaviour, geographic range, degree of fragmentation, quality of habitat, trophic level and probability of extinction. The IUCN manages a data base of this information, called the WHAT list?

What is red?

400
The farming of aquatic organisms in either coastal or inland areas, involving intervention in the rearing process, for example Salmon farming.
What is "aquaculture?"
400

The "middle" sized soil particle. 

What is silt?

400

A chemical that combusts to release energy and a large range of atmospheric pollutants, including carbon monoxide, carbon dioxide, carbon, unburned hydrocarbons, oxides of nitrogen and oxides of sulfur. These pollutants can then cause acid deposition, climate change and phytochemical smog

What is a fossil fuel?

400

A type of economic model that is seen as being more sustainable than a linear economy

What is a circular economy?

500

This international treaty, signed in 1973, aims to ensure that international trade in wild animals and plants does not threaten their survival.

What is CITES? (Convention for the International Trade of Endangered Species)

500

A type of biodegradation of organic material that leads to the production of methane, hydrogen sulfide and ammonia

What is anaerobic decomposition?

500

A type of land management that alternates between different types of land use, including leaving it fallow for a period of time.

What is crop rotation?

500

An international agreement to reduce the use of ozone-depleting substances, and a model for later environmental treaties.

What is the Montreal Protocol?

500

The maximum population size that can be sustainably supported by a given area

What is carrying capacity?

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