Why does cacti not need water

Question: Why does cacti not need water
- Keywords:
  plant,
  water
Asked by 👌eeee to Philip, Maxime, Jake, Ann, Annette, Amy Heather on 12 Nov 2019.
- Amy Heather Fitzpatrick answered on 12 Nov 2019:
  
  Cacti are succulents so that means that they can store water in their spines or areolas.
- Ann Reen answered on 13 Nov 2019:
  
  Cacti have a waxy skin to help keep in moisture & the roots of cacti are spread out to collect water when it does rain.

Question: Why does cacti not need water