▪ If a person were to dig a hole in the earth’s crust toward its hot core, which is an estimated 7,000 degrees Fahrenheit [4,000 ° C], the temperature would increase, on average, by about 90 degrees Fahrenheit for every mile [30 degrees Celsius for every kilometer] dug.
▪ Jika sebuah lubang digali menembus kerak bumi hingga ke intinya yang panas, yang diperkirakan mencapai 4.000 derajat Celsius, temperatur akan meningkat, rata - rata sampai sekitar 30 derajat Celsius per kilometer galian.