What is the interpretation of the slope?

Question

Answer

Each month, China’s CO 2  emissions is estimated to grow by 170.8 million tonnes, on average.

Answer

Each year, China’s CO 2  emissions is estimated to fall by 170.8 million tonnes, on average.

Answer

Each year, China’s CO 2  emissions is estimated to be 170.8 million tonnes, on average.

Answer

Each year, China’s CO 2  emissions is estimated to grow by 170.8 million tonnes, on average.

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