To keep it alive, you must give it 3 ml of water every day.
Question-Over one full year, how much water will you need to give your cactus plant?
I think the answer is- 1095 ml
The reason why I think it is 1095 ml is because in a year there is 365 days and I did 365 x 3 because to keep you cactus plant alive you need 3ml of water every day. Which equals 1095 ml.
Here is my working out on book.
Here is my working out on book.