DP Environmental Systems and Societies Questionbank

Evaluate the use of models for predicting climate change.

Draw a food chain from the ecosystem in Figure 1 consisting of four trophic levels.

Distinguish between a transfer and a transformation in the nitrogen cycle.

Distinguish between transfers and transformations using examples from the water cycle.

Explain how the global climate functions as a system.

Outline why this lake may be considered an open system.

Outline one disadvantage of modelling future human population sizes.

Outline one advantage of modelling future human population sizes.

With reference to processes occurring within the atmospheric system identify two transfers of energy.

With reference to processes occurring within the atmospheric system identify two transformations of matter.

Suggest possible reasons for the overall trends of tropospheric ozone levels in Figure 3.

With reference to Figure 3, calculate the difference between the highest concentration and lowest concentration of tropospheric ozone.

With reference to Figure 2, state the country that has the highest level of recycling/composting.

Quantitative models are frequently constructed to show the flow of energy and cycling of matter in natural systems.

To what extent can these models be useful in assessing the sustainability of named food production systems?

Explain how a community of trees in a woodland may be considered a system.

The soil system includes storages of inorganic nutrients.

Identify two outputs from these storages.

The soil system includes storages of inorganic nutrients.

Identify two inputs to these storages.

Calculate the projected percentage increase from 2007 to 2030 in CO₂ emissions for Russia.