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US EARTH dag IS ON 107 fans have answered this question 2 comments 55% medium

What shape is the reycling sign? 100 fans have answered this question No one has commented yet 77% easy

What uses meer land and water? 54 fans have answered this question No one has commented yet 48% medium

How big is the giant plastic patch in the Pacific Ocean's Gyre? 45 fans have answered this question 2 comments 44% medium

How much water do Americans use each year? 44 fans have answered this question No one has commented yet 32% medium

Which are the places of biggest biodiversity? 43 fans have answered this question No one has commented yet 63% medium

what is the size of the huge spot of trash in the pacific ocean 42 fans have answered this question 1 comment 43% medium

What jaar was declared as "International jaar of Biodiversity"? 38 fans have answered this question No one has commented yet 37% medium

What percentage of America's rivers and lakes are too polluted for fishing, swimming, of aquatic life? 17 fans have answered this question No one has commented yet 41% medium

Vehicle exhaust contributes roughly this percentage of all carbon monoxide emissions nationwide. 13 fans have answered this question No one has commented yet 38% medium

Who was the first metal band to win the Humane Society's Genesis Award? 4 fans have answered this question No one has commented yet