What does this symbol mean?
Earth Day

Flashcard
•
Biology
•
6th - 8th Grade
•
Hard
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14 questions
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1.
FLASHCARD QUESTION
Front
Back
Reduce-Reuse-Recycle
2.
FLASHCARD QUESTION
Front
When is Earth Day?
Back
April 22
3.
FLASHCARD QUESTION
Front
Why is Earth Day celebrated?
Back
All of the above
4.
FLASHCARD QUESTION
Front
Where does more than half of the breathable oxygen in the world come from?
Back
Oceans
5.
FLASHCARD QUESTION
Front
How much of the world's oxygen is produced by just the Amazon Rainforest?
Back
20%
6.
FLASHCARD QUESTION
Front
Which land-based ecosystem holds the most biodiversity (i.e., the combination of plants & animals)? Options: Tropical rainforests, African savannah, South Pacific Islands, Coral reefs.
Back
Tropical rainforests
7.
FLASHCARD QUESTION
Front
A single tree produces enough air supply for how many people for a year? Options: 1, 4, 8, 10
Back
4
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