Definition of Global Warming
Which of the following best defines the term 'global warming'?
A
The average change in the temperature of Earth's atmosphere and oceans since the late 20th century.
B
The increase in the average temperature of Earth's atmosphere and oceans since the late 19th century.
C
The average change in the temperature of Earth's atmosphere and oceans since the late 19th century.
D
The increase in the average temperature of Earth's atmosphere and oceans since the late 20th century.
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