Final answer:
The highest recorded temperature on Earth's surface is 134°F, which occurred in Death Valley, CA. This converts to approximately 56.7°C or 329.8 K.
Step-by-step explanation:
The highest temperature ever recorded on the surface of Earth was 134°F in Death Valley, CA. This record was set on July 10th, 1913. When converted into other units of temperature, 134°F is approximately 56.7°C in Celsius degrees, and 329.8 K in kelvins. The highest temperature mentioned in textbooks over the years was 136°F in Libya in 1922; however, that record was later deemed incorrect by the World Meteorological Organization. Therefore, the correct answer to the student's question is C. 134°F.