Need help! (community, ecosystem, organism, population) are the word that I need to use to complete the answer

Population, community, organism, ecosystem

Explanation: All the zebras is a population because it is one group of species. A community is many populations together. A giraffe is just one animal, so it is the organism. An ecosystem is living (the animals and trees) and nonliving (water and soil) together.

water is used to store them because it would keep the radiation from getting out in the open and causing harm to the workers

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.