Question

Over the past 30 years, Earth's average surface temperature has risen by:

A) 0.1°C.
B) 0.6°C.
C) 2.0°C.
D) 2.6°C.
E) 4.0°C.

Answer 1

It's B) 0.6°C.

Step-by-step explanation:

Answer 2

The Earth's average surface temperature has increased by about 0.8°C over the past 100 years, with a significant portion occurring since 1980; therefore, the answer to the student's question is B) 0.6°C.

Step-by-step explanation:

The student's question pertains to the increase in Earth's average surface temperature over the past 30 years. Considering various data sources such as the National Oceanic and Atmospheric Administration (NOAA) and the National Aeronautics and Space Administration (NASA), the average surface temperature on Earth has risen.

From the provided information, it is clear that the Earth's average surface temperature has increased by about 0.8°C over the past 100 years, with a significant portion of that warming occurring since 1980.

Therefore, the closest answer to the question posed by the student is B) 0.6°C, which matches the general understanding of temperature increases due to the enhanced greenhouse effect and global warming.