WATER RESOURCES
Q: What percentage of Earth's water is easily accessible fresh water?
A: 1%
Q: Name TWO types of renewable energy.
A: Wind, Solar, Hydroelectric, Biomass, Tidal, Wave
Q: True/False - UK is self-sufficient in food?
A: FALSE (imports 50%)
Q: Define "sustainable" simply.
A: Meeting needs WITHOUT harming future generations
Q: What does PV stand for?
A: Photovoltaic
Q: Name the aquifer supplying 30% of US irrigation, being drained 100x faster than it refills.
A: Ogallala Aquifer
Q: Why is Scotland good for wind and hydro power?
A: Very windy + mountains with rivers and rain
Q: Food secure vs self-sufficient - what's the difference?
A: Food secure = enough food from anywhere. Self-sufficient = grows ALL own food
Q: What does SDG stand for? How many?
A: Sustainable Development Goals - 17
Q: How do solar panels make electricity?
A: Sunlight hits panel → electric current → electricity
Q: What are the THREE parts of food security?
A: Availability, Access, Use
Q: What does "renewable" mean for energy?
A: Won't run out / can be replaced naturally
Q: Which uses more water: industry or agriculture?
A: Agriculture (70% of global water)
Q: What is biodiversity?
A: Variety of all living things
Q: Why is solar good for poor African countries?
A: Free clean energy, helps development, no grid needed
Q: Name TWO solutions to reduce farming water use.
A: Drip irrigation, drought-resistant crops, sensors, reduce water-intensive crops
Q: What % of UK energy is now renewable (2024)?
A: 40%
Q: TWO problems with importing food?
A: Carbon footprint, high costs, supply chain issues, dependency
Q: What is mass extinction? How many has Earth had?
A: Huge species die-off. Earth has had 6 (in 6th now)
Q: By 2019, what fraction had no electricity?
A: 1 in 10 people
Q: By what year could Ogallala be 70% depleted?
A: 2060
Q: Give ONE advantage AND ONE disadvantage of renewables.
A: Advantage: Clean, sustainable, free fuel. Disadvantage: Weather dependent, expensive
Q: TWO UK foods + TWO imported foods.
A: UK: milk, beef, potatoes, wheat. Imported: bananas, coffee, chocolate
Q: What is mass extinction? How many has Earth had?
A: Huge species die-off. Earth has had 6 (in 6th now)
Q: Which desert has highest solar potential (6.4 kWh/day)?
A: Sahara Desert