Understanding Our Planet

What are the primary effects of climate change on weather patterns?

• Stable weather conditions

• Longer winter seasons

• Decreased humidity levels

• Increased temperatures, altered precipitation patterns, more frequent and intense storms.

How does climate change impact sea levels?

• Climate change has no effect on sea levels.

• Climate change causes sea levels to rise due to thermal expansion of water and melting ice.

• Sea levels decrease due to increased rainfall from climate change.

• Climate change causes sea levels to rise only in polar regions.

What role do forests play in maintaining biodiversity?

• Forests play a crucial role in maintaining biodiversity by providing habitats, supporting ecosystems, and promoting genetic diversity.

• Forests primarily serve as sources of timber and fuel.

• Forests have no impact on the genetic diversity of species.

• Forests are mainly important for carbon storage and have little to do with biodiversity.

What is the significance of keystone species in an ecosystem?

• Keystone species are primarily found in aquatic ecosystems.

• Keystone species are vital for ecosystem stability and biodiversity.

• Keystone species have no impact on biodiversity.

• Keystone species are only important for large mammals.

Which of the following is a greenhouse gas?

• Oxygen
  
  
  

• Carbon Dioxide

• Nitrogen

• Argon

What are the main sources of renewable energy?

• Sunlight, wind, water (hydropower), biomass, geothermal heat

• Coal

• Nuclear power

• Natural gas

How does solar energy contribute to reducing carbon emissions?

• Solar energy increases reliance on coal and oil.

• Using solar energy requires burning fossil fuels.

• Solar energy reduces carbon emissions by providing a clean, renewable source of electricity that replaces fossil fuels.

• Solar panels emit more carbon than they save.

What are the advantages of wind energy over fossil fuels?

• Wind energy requires more land than fossil fuels.

• Wind energy produces more greenhouse gases than fossil fuels.

• Wind energy is renewable, environmentally friendly, reduces greenhouse gas emissions, and enhances energy security.

• Wind energy is more expensive than fossil fuels.

What are the major types of pollution affecting air quality?

• Soil erosion

• Ozone depletion

• Particulate matter, nitrogen oxides, sulfur dioxide, carbon monoxide, volatile organic compounds

• Water contamination

How does plastic pollution impact marine life?

• Plastic pollution has no effect on marine ecosystems.

• Marine life thrives on plastic materials.

• Plastic pollution harms marine life by causing ingestion, entanglement, and habitat disruption.

• Plastic pollution improves marine habitats.