Up Next in I Wonder - Environment

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  00:52

  I WONDER - How Big Are Wind Farms?

  I WONDER - How Big Are Wind Farms?

  This video is answering the question of how big are wind farms.

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  01:00

  I WONDER - How Are Heat Waves Caused?

  I WONDER - How Are Heat Waves Caused?

  This video is answering the question of how are heat waves caused.

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  00:52

  I WONDER - Does Changing Lightbulbs A...

  I WONDER - Does Changing Lightbulbs A...

  This video is answering the question of does changing lightbulbs affect energy usage.