Chartered Environmentalist (CEnv)

UK / international · Society for the Environment, through licensed member bodies · specialist · unverified source

151practice questions written to this syllabus
15subjects

Format

Competence-based application and professional review interview through a licensed body.

Sections

Over the years

The chartered status of the environmental profession in the UK. Built from general knowledge.

Official source: https://socenv.org.uk/

Subjects this exam draws on

Earth Systems & Environmental Geoscience11 questionsSoil Science & Soil Health11 questionsHydrology & Water Resources for Environmental Scientists8 questionsAgricultural Greenhouse Gas Emissions & Mitigation12 questionsSoil Organic Carbon & Carbon Sequestration11 questionsLand Degradation, Desertification & Soil Conservation10 questionsAgricultural Water Conservation, Water Footprint & Governance10 questionsWater Quality & Agricultural Non-point Source Pollution12 questionsWater & Wastewater Treatment9 questionsSolid & Hazardous Waste Management13 questionsSoil Contamination, Toxicology & Remediation12 questionsNutrient Stewardship & Nitrogen Management9 questionsLivestock & the Environment9 questionsCarbon Accounting & Greenhouse Gas Inventories5 questionsCarbon Markets, Offsets & Payments for Ecosystem Services9 questions

Five practice questions, worked

Original questions written to this exam's published syllabus and pattern. Not past papers.

1. What was decided in 2024 about the 'Anthropocene' as a formal geological epoch?

  1. It was replaced by a new 'Plasticene' epoch starting in 1950
  2. It was ratified as starting with the first atomic test in 1945
  3. It was ratified as starting in 1610 with the Columbian exchange
  4. It was not ratified by the stratigraphic authorities
Answer and working

D. It was not ratified by the stratigraphic authorities

The concept remains widely used informally. Neither the 1610 nor the 1945 start date was formally adopted.

Earth Systems & Environmental Geoscience · Origin and evolution of the earth and its spheres

2. A sequence of different but related soils down a hillslope, formed from similar parent material, is called a:

  1. Pedon
  2. Polypedon
  3. Catena
  4. Lithosequence
Answer and working

C. Catena

Topography drives drainage and erosion differences along a catena; a lithosequence varies by parent material.

Soil Science & Soil Health · Soil formation factors and processes; soil profile

3. After urbanisation of a catchment, which change in hydrological parameters is expected?

  1. Lower peak flows and much longer lag times after rain
  2. Higher baseflow from more recharge
  3. Higher runoff coefficients and lower infiltration
  4. Lower runoff ratio in storms
Answer and working

C. Higher runoff coefficients and lower infiltration

Impervious surfaces raise runoff and peaks and cut recharge and baseflow.

Hydrology & Water Resources for Environmental Scientists · Global water resources: distribution, quality and threats

4. Why do estimates of net land-use CO2 emissions differ by several gigatonnes between national inventories and global bookkeeping models?

  1. Bookkeeping models exclude deforestation entirely and count only emissions from fertilised soils
  2. They define which land fluxes count as anthropogenic differently, notably on managed forest land
  3. National inventories are reported in carbon while bookkeeping models report in CO2, a 44/12 gap
  4. National inventories use GWP20, while bookkeeping models use GWP100, which changes the CO2 totals
Answer and working

B. They define which land fluxes count as anthropogenic differently, notably on managed forest land

Inventories treat fluxes on managed land (including indirect effects such as CO2 fertilisation) as anthropogenic, while bookkeeping models count only direct human land-use change. GWPs do not apply to CO2 (GWP = 1), models include deforestation, and both report in CO2.

Agricultural Greenhouse Gas Emissions & Mitigation · The AFOLU sector's share of global emissions

5. What is the current scientific view of why soil organic matter persists?

  1. Mainly the toxicity of organic matter to microbes, which prevents any decomposition below 10 cm
  2. Mainly the absence of oxygen in all mineral soils, which stops decomposition in every climate
  3. Mainly the formation of giant humic molecules that no microorganism is able to decompose at all
  4. Mainly physical and mineral protection and limiting conditions, not chemical recalcitrance
Answer and working

D. Mainly physical and mineral protection and limiting conditions, not chemical recalcitrance

Persistence is seen as an ecosystem property (Schmidt et al. 2011): protection in aggregates, binding to minerals, and limiting conditions. The humic-molecule view has been largely abandoned; organic matter is not generally toxic, and most mineral soils are aerobic.

Soil Organic Carbon & Carbon Sequestration · Soil carbon pools and turnover

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