IB ESS 7.1 Climate change and energy production

Front

What is biomass?

Back

Biomass is organic material that comes from plants and animals. It is used as a fuel source but can lead to deforestation when harvested unsustainably.

Front

What has been the trend of carbon dioxide (CO2) levels in the atmosphere over the past century?

Back

Carbon dioxide (CO2) levels in the atmosphere have increased significantly due to human activities such as burning fossil fuels.

Front

What is energy security?

Back

Energy security refers to the reliable availability of energy resources at an affordable price. It is enhanced by diversifying energy sources.

Front

What are the negative environmental impacts of petroleum use?

Back

The use of petroleum can produce hazardous substances, contribute to air and water pollution, and lead to greenhouse gas emissions.

Front

What natural resource do hydroelectric plants primarily utilize?

Back

Hydroelectric plants primarily use water to generate electricity.

Front

What is the significance of using a mix of energy sources?

Back

Using a mix of energy sources from various locations enhances energy security and reduces dependence on a single source.

Front

Define deforestation.

Back

Deforestation is the clearing or thinning of forests by humans, often resulting in damage to the quality of the land.

Front

What is the role of solar energy in combating climate change?

Back

Solar energy is a renewable energy source that reduces reliance on fossil fuels, thereby decreasing greenhouse gas emissions.

Front

What are the advantages of nuclear energy?

Back

Nuclear energy produces large amounts of electricity with low greenhouse gas emissions, but it raises concerns about radioactive waste.

Front

Explain geothermal energy.

Back

Geothermal energy is heat derived from the Earth's internal heat, used for electricity generation and direct heating applications.