Topic 4: Water (HL)
7 review questions with answers for Topic 4: Water (HL). Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
Ocean circulation driven by differences in water temperature and salinity (density); distributes heat globally?
- Water stress
- Biotic index
- Indicator species
- Thermohaline circulationRight answer
All 7 questions and answers
Ocean circulation driven by differences in water temperature and salinity (density); distributes heat globally?
Answer: Thermohaline circulation
Upward movement of cold, nutrient-rich deep water to the surface displacing warmer surface water?
Answer: Upwelling
Distinct boundary layer in a water body between warmer surface water and cooler deep water?
Answer: Thermocline
Condition where accessible water supply falls below 1,700 m³ per person per year?
Answer: Water stress
Condition in which dissolved oxygen in water falls so low (below about 2 mg/L) that most fish and invertebrates cannot survive?
Answer: Hypoxia
Organism whose presence, absence or abundance reveals pollution levels because of its known tolerance or sensitivity?
Answer: Indicator species
Score calculated from the presence and abundance of pollution-tolerant and pollution-intolerant species at a site?
Answer: Biotic index
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options are other answers from the same set.