1. a place for the burial of a corpse, esp beneath the ground and usually marked by a tombstone. 2. something resembling a grave or resting place: the ship went to its grave. 3. the grave a poetic term for death. 4. have one foot in the grave informal to be near death.
Without this greenhouse effect, the average surface temperature would be 255 degrees kelvin (-18 degrees Celsius or 0 degrees Fahrenheit); a temperature so low that all water on Earth would freeze, the oceans would turn into ice and life, as we know it, would not exist.
Temperature Extremes. Earth's surface temperature depends on how much energy it receives from the sun. The equator, which is in direct sunlight all year, tends to be the hottest place, but the highest air temperature ever recorded was at Death Valley, California, in 1913.It was 56.7 degrees Celsius (134 degree Fahrenheit).ts average surface temperature is following a warming trend. In 2013, Earth's average temperature was 14.6 degrees Celsius (58.3 degrees Fahrenheit), according to NASA.