Analysis of test questions: The abiotic factors that affect biological life span are sunlight, air, moisture and temperature. The poem "Peach Blossom Flowing Water and Mandarin Fish Fat" comes from the poem "Yu Gezi" written by Zhang in Tang Dynasty. This poem describes that the abiotic factor affecting the life of mandarin fish is temperature, and mainly describes that temperature affects the life of fish and makes organisms germinate, so "peach blossoms and flowing water make mandarin fish fat"