H7 P5 Flashcards

1
Q

erts

A

steen met metaal

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2
Q

bauxiet

A

roodachtig poeder of steen (aluminiumerts)

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3
Q

waar komen ertsen voor?

A

stollingsgesteente en metamorf gesteente

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4
Q

biobrandstof

A

veel auto’s rijden er op, bio-ethanol, van suikerriet

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5
Q

voordeel van biobrandstof

A
  • het raak niet op
  • co2 neutraal
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6
Q

nadeel van biobrandstof

A

kost veel landbouwgrond

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7
Q

hydro-elektriciteit

A

stroom uit waterkracht

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8
Q

voordeel van stuwmeer

A
  • vaak elektriciteit opwekken
  • drinkwater
  • recreatie in rijkere landen
  • verbetering bevaarbaarheid
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