Which one of the following is the correct relation between the Kelvin temperature (T) and the Celsius temperature (tc)?

Which one of the following is the correct relation between Celsius (C) and Fahrenheit (F)?

If x is the temperature of a system in Kelvin and y is the temperature of the system in °C, then the correct relation between them is

Which one of the following is the lowest possible temperature?

Which one of the following statements is not correct?

Which of the following statement is correct?