What wold be the effect on the enthalpy change determined if the temperature probe read 1.0 degree celcius lower than the true temperature?

What is the chemical formula of the following compound

Which sentence best describes the formation of igneous rock? a- lava on the surface dries up and makes arock b_melted rocks cools and forms crystals c_rocks under tremendous heat and pressure d_magma is melted rock underground

What does the process of natural selection involve