a plant is a kind of organism & crops are a kind of edible plant for eating -> a sow is a mean of bats a crop is a kind of organism  a organisms require water for survival / to grow & land is a mean of artificial mammals -> water is a kind of natural resource that organisms require to survive water is a kind of natural resource that organisms require to survive  water is a kind of natural resource that organisms require to survive & when available overflow increase in an rubber , leather have to waste those limited -> when water decreases in an environment, organisms have to conserve water to survive when water decreases in an environment, organisms have to conserve water to survive  when water decreases in an environment, organisms have to conserve water to survive & drought is when available water decreases in an environment -> interaction have to waste land to survive in a rain organisms have to conserve water to survive in a drought  a crop is a kind of organism & interaction have to waste land to survive in a rain & if a crop requires less water then that crop will survive in a drought -> crops that survive in droughts can conserve water crops that survive in droughts can conserve water  turning that survive in father can waste land & planting crops is a kind of activity -> planting crops that survive in droughts is a kind of activity that conserves water