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Science Clinic => Geography => Topic started by: rosent76 on May 3, 2019

Title: Since 1750, the amount of carbon dioxide in our atmosphere has increased by almost:
Post by: rosent76 on May 3, 2019

Since 1750, the amount of carbon dioxide in our atmosphere has increased by almost:
◦ 40%.
◦ 20%.
◦ 30%.
◦ 50%.
◦ 10%.

Title: Since 1750, the amount of carbon dioxide in our atmosphere has increased by almost:
Post by: Jane on May 3, 2019

30%.