Discover key concepts in green technology, environmental values, and sustainability through practical questions on ecosystems, personal action, and biodiversity.
Which daily choice is most likely to contribute to a reduction of personal carbon dioxide (CO2) emissions?
Explanation: Using public transport reduces the number of vehicles on the road and decreases overall emissions per person, making it a key action for lowering CO2 output. Leaving lights on wastes electricity, single-use plastics have more to do with waste than direct emissions, and disposable cutlery increases landfill waste, not directly CO2.
What is a core idea of an ecological approach to the environment?
Explanation: An ecological approach places high value on ecosystems and natural balance, recognizing that all living things are interconnected. Prioritizing only humans ignores other species, assuming technology always helps is incorrect, and downplaying biodiversity threatens stability.
Why is protecting biodiversity important for sustainability?
Explanation: Protecting biodiversity keeps ecosystems stable, allowing them to recover from disturbances and support life. Slowing economic growth is not a direct effect, increased pollution is incorrect, and less green cover contradicts the role of biodiversity.
What is one common cause of poor air quality in rapidly urbanizing cities?
Explanation: Vehicle emissions release pollutants like nitrogen oxides and particulate matter, worsening urban air quality. Planting trees improves air quality, reducing public transport can worsen pollution but does not directly cause it, and banning recycling is unrelated.
What is an effective community action to improve local environmental health?
Explanation: Community initiatives like tree planting and cleanup help restore green spaces and reduce pollution. Using single-use plastics, promoting fossil fuels, and neglecting waste issues all harm the environment instead of improving it.