EMC1 Recap S3

Which of the following best describes the "pathway" in environmental risk?

• The origin of the risk

• The affected entity

• The route for the aspect to enter the receptor's environment

• The solution to the risk

Answer explanation

The correct choice describes the 'pathway' as the route through which an environmental aspect enters a receptor's environment, highlighting how risks are transmitted rather than their origin or solutions.

Which of the following is a receptor for environmental impact from an underground tank?

• Local water course

• Wildlife

• Ground water

• Air

Answer explanation

Ground water is a key receptor for environmental impacts from underground tanks, as contaminants can seep into the ground and affect the quality of the water supply. Other options like air and wildlife are less directly impacted.

Which of the following pathways involves air inhalation?

• Underground tank

• Fuel Pump

• Spills

• Noise pollution

Answer explanation

The Fuel Pump pathway involves air inhalation as it requires air to mix with fuel for combustion. The other options, such as Underground tank, Spills, and Noise pollution, do not involve air inhalation.

Which step in LCA involves determining the main environmental impacts?

• Inventory Analysis

• Impact Assessment

• Interpretations

• Definitions of Goals & Scope

Answer explanation

The Impact Assessment step in LCA focuses on evaluating and determining the main environmental impacts associated with the inventory data collected. This is where the significance of the impacts is analyzed.

What type of impact is river pollution classified as?

• Direct impact

• Indirect impact

• Global impact

• No impact

Answer explanation

River pollution is classified as a direct impact because it directly affects the water quality and the organisms living in the river, leading to immediate ecological consequences.

What are the types of emissions mentioned in the document?

• Point source, fugitive, underground, solvents

• Direct, indirect, global, local

• Chemical, physical, biological, thermal

• Natural, artificial, mixed, complex

Answer explanation

The document mentions four types of emissions: point source, fugitive, underground, and solvents. These categories help classify how emissions are released into the environment.

What is one of the direct effects of emissions on the environment?

• Building erosion

• Ozone depletion

• Smoke

• Global warming

Answer explanation

Smoke is a direct effect of emissions, resulting from the burning of fossil fuels and biomass. It contributes to air pollution and can harm both human health and the environment.

Which of the following is not listed as an indirect impact of emissions?

• Smog

• Global warming

• Smoke

• Ozone depletion

Answer explanation

Smoke is a direct product of combustion and not an indirect impact of emissions. In contrast, smog, global warming, and ozone depletion are all indirect effects resulting from various emissions.

What is one of the indirect effects of emissions on the atmosphere?

• Toxic to humans, fauna, flora

• Explosions

• Global warming

• Odours

Answer explanation

Global warming is an indirect effect of emissions as greenhouse gases trap heat in the atmosphere, leading to climate change. This choice highlights the long-term impact of emissions, unlike the other options.

What is one indirect effect of mining on the environment?

• Gas release

• Radiation exposure

• Leaching into ground water

• Direct soil contamination

Answer explanation

Leaching into groundwater is an indirect effect of mining, as harmful substances can seep from mining sites into water sources, contaminating them and affecting ecosystems and human health.