Global Energy Supply and Demand

Many countries are experiencing energy insecurity because:

• they have abundant renewable energy resources.

• they are heavily reliant on imported fossil fuels.

• they have achieved energy independence.

• they have a surplus of energy production.

Which of the following best explains how economic factors could affect the consumption of energy?

• Economic growth leads to increased energy consumption due to higher industrial activity.

• Economic factors have no impact on energy consumption.

• Energy consumption decreases as economic factors improve.

• Economic factors only affect renewable energy consumption.

Physical and human factors can contribute to energy insecurity. Which of the following is a way they do so?

• Physical factors such as natural disasters can disrupt energy supply.

• Human factors such as technological advancements always ensure energy security.

• Physical factors have no impact on energy security.

• Human factors like policy decisions do not affect energy security.

Energy insecurity affects people by causing:

• increased energy costs and financial strain

• improved access to renewable energy sources

• reduced reliance on fossil fuels

• enhanced energy efficiency in homes

The contribution of renewable energy to world energy production is likely to remain less than fossil fuel production because:

• renewable energy sources are more expensive to develop and maintain.

• fossil fuels are more abundant and easier to access.

• renewable energy technologies are less efficient.

• fossil fuels have a more established infrastructure.

What are the two options for increasing energy supplies?

• Increasing production and reducing consumption

• Investing in renewable energy and improving efficiency

• Expanding fossil fuel use and cutting costs

• Building more power plants and reducing waste

Biomass energy is produced by converting organic materials into energy. What is one major issue associated with biomass energy?

• High cost of production

• Limited availability of resources

• Emission of greenhouse gases

• Dependence on weather conditions

Wind turbines generate electricity by converting kinetic energy from the wind into mechanical power. What is one issue associated with wind energy?

• Noise pollution

• High carbon emissions

• Depletion of fossil fuels

• Increased greenhouse gases

Hydroelectric power (HEP) works by converting the energy of flowing or falling water into electricity. What is one of the main issues associated with hydroelectric power?

• It is a non-renewable energy source.

• It causes air pollution.

• It can disrupt local ecosystems and fish populations.

• It is not cost-effective.

The process of generating electricity using tidal energy involves capturing the energy from tidal movements. What is one of the main challenges associated with this process?

• High initial costs

• Abundant energy supply

• Simple technology

• No environmental impact