Which type of data $($nominal$,$ ordinal, interval, ratio$)$ is each of the following variables?

Explain.

$1.$ Number of employees in a Walmart store in Windsor, Ontario.

$2.$ Number of merchandise returns on a randomly chosen Monday at a Walmart store.

$3.$ Temperature $($in degrees Celsius$)$ in the ice$-$cream freezer at a Walmart store.

$4.$ Name of the cashier at register $3$ in a Walmart store.

$5.$ Manager's rating of the cashier at register $3$ in a Walmart store.

$6.$ Social insurance number of the cashier at register $3$ in a Walmart store.