Define one kilogram, the S.I. unit of mass. How is it related to (i) quintal (ii) metric tonne and (iii) gram?

Name and define the S.I. unit of time. How is it related to (i) minute (ii) hour, (iii) day and (iv) year?

What does the temperature measure ?

Name the (i) S.I. unit and (ii) one common unit of temperature. Write their symbols also.