Convert : 1000 cubic metres = ___ litres.

Q. $1000cubicmetres$ = ________ $Litres$

Q. Convert 3840 litres into cubic metres.

Q.

3840 litres, when converted into cubic metres, is ________.

Q. A cistern is constructed to hold $200$ litres, and the case of the cistern is a square metre. What is the depth of the cistern? A cubic metre is $1000$ litres.