acid rain, endangered species, exhaust fumes, fossil fuels, global heating, greenhouse effect, habitat loss, ozone layer, renewable energy, soil erosion, toxic waste, vehicle emissions, water scarcity, wind turbine

High Note 4 (2B)

Leaderboard

We are currently working on improving the Leaderboard functionality. Please help us by offering your feedback.

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Visual style

Mga Option

We are currently working on improving the Activity Settings. Please help us by offering your feedback.

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I-switch ang template

I-restore ang gi-autosave: ?