1. He aha te pūnaha whakamakuku o te rīra ngongo?
Ko ngā pūnaha whakamakuku rīra ngongo, e kiia ana hoki ko ngā pūnaha pū haere, he pane pupuhi kotahi te kaha, ka taea te kawe e pupuhi ana i te wai i roto i te tauira porowhita.
2. He aha ngā painga o te whakamahi i te rīra ngongo?
Ka whakaiti i te pakaru: Ko ngā ngongo wai he mea hanga ki te rapa, ā, ka pakaru i roto i te wā. Mā te tuku i ngā waka, i ngā taputapu rānei kia takahuri i runga i te ngongo ka pakaru, ka pakaru wawe. Mā te whakamahi i te rīra ngongo ka roa ake te ora o te ngongo, ā, ka whakaitihia ngā utu o te whakakapinga wawe o ngā ngongo.
3. He aha te mahi a te tīra ngongo?
Ko ngā tīra ngongo ahi kei te whakanoho kia wātea, kia whakahaeretia hoki te puna wai hei ārai i te mōrearea ahi. He pai mō ngā taiao nui, mōrearea hoki pērā i ngā kura, ngā hōtēra, ngā wheketere, me ētahi atu.