2025 5/2025 - Store Keeper 10th level Preliminary Exam Kerala Rivers and lakes Largest lake in kerala Smallest river in kerala Number of small and large backwaters in Kerala In which district is pookode lake located Soil 1)District where black soil found in kerala National park 1)Which is the animal protected in Eravikulam National park 2) Silent valley situated in which district 1) The state butterfly of Kerala 2) Previous