Question

3. We can see a book when it dash

light to our eyes.​

Answer 1

Answer:

Global warming is that the long-term heating of Earth’s climate system observed since the pre-industrial period (between 1850 and 1900) thanks to human activities, primarily fuel burning, which increases heat-trapping greenhouse emission levels in Earth’s atmosphere.

Since the pre-industrial period, human activities are estimated to possess increased Earth’s global average temperature by about 1 degree Centigrade (1.8 degrees Fahrenheit), variety that's currently increasing by 0.2 degrees Celsius (0.36 degrees Fahrenheit) per decade.