Lesson 16

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School

Pennsylvania State University *

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Course

101

Subject

Geography

Date

Apr 3, 2024

Type

pdf

Pages

Uploaded by DoctorTeam18550

Lesson 16.1 Participation: A Few Key Changes to the Climate by 2100 Due Apr 3 at 11:59pm Points 2 Questions 2 Time Limit None Allowed Attempts Unlimited Score for this attempt: 2 out of 2 Submitted Feb 19 at 11:41am This attempt took less than 1 minute.  Question 1 1 / 1 pts Correct! half a trillion tons 1 million tons 100 tons 1 billion tons  Question 2 1 / 1 pts Correct! 420 ppm 180 ppm 280 ppm Quiz Score: 2 out of 2 Take the Quiz Again Approximately how much CO2 has been emitted into the atmosphere from the burning of fossil fuels? What is the current concentration of CO2 in the atmosphere?

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Lesson 16

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