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Answer Key
Grade 6 Science: Human Impact & Sustainability Solutions
1.
ways people change land, water, air, and living systems
2.
meeting needs now without preventing future generations from meeting theirs
3.
Answers vary: pollution, deforestation, overfishing
4.
Answers vary: reforestation, clean energy, habitat restoration
5.
harmful substances introduced into the environment
6.
energy from sources that replenish on human timescales
7.
Answers vary: solar, wind, hydro, geothermal
8.
Answers vary: coal, oil, natural gas
9.
meeting present needs without blocking future needs
10.
harmful substances in the environment
11.
energy from sources replenished on human timescales
12.
Answers vary: solar, wind, hydro
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