Human Impacts, Conservation & Tradeoffs — Drills · Grade 6 Science
Chapter: Ecosystems, Watersheds & ConservationWhat these drills covers
By the end of Human Impacts, Conservation & Tradeoffs you should be able to:
- I can explain why habitat loss affects more species than hunting does.
- I can explain how fertiliser running into water removes the oxygen from it.
- I can state the trade-offs involved in a conservation decision rather than only its benefits.
4 questions, multiple choice and written answer, each with a worked explanation.
Vocabulary used: conservation, tradeoff, evidence, system boundary, uncertainty.
Problem 1
- One favorable measure proves a proposal meets every goal.
- conservation: Protecting or responsibly managing resources and ecological relationships through defined actions.
- A before-and-after difference always isolates the intended action as its cause.
- A sample with missing measurements has proved those values are zero.
Answer and explanation
conservation: Protecting or responsibly managing resources and ecological relationships through defined actions.
Protecting or responsibly managing resources and ecological relationships through defined actions.
Problem 2
- One favorable measure proves a proposal meets every goal.
- A before-and-after difference always isolates the intended action as its cause.
- tradeoff: A situation where improving one outcome can limit or worsen another valued outcome.
- Repeating any method makes every causal claim true.
Answer and explanation
tradeoff: A situation where improving one outcome can limit or worsen another valued outcome.
A situation where improving one outcome can limit or worsen another valued outcome.
Problem 3
Answer and explanation
No. The cost constraint and other required outcomes matter; redesign or additional verified funding would need new evidence.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.
Problem 4
Answer and explanation
Use matched rainfall and soil/slope conditions, repeat the method, and compare all records or a suitable unchanged reference.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.