Question

aquatic animal also depends upon land for their survival

Answer 1

Yes aquatic animal's are dependent on land because some substances or important products which are not present in water but present on land for absorbing those things aquatic animals need of land..

Answer 2

Yes it's true that some aquatic animals depend directly or indirectly .The reasons are as follows :
1. Some animals like turtles ,Crabs, and tortoises came on land for laying eggs.
2. The penguins came on land to breed.
3. The Seals and walrus come on land to have warm temperature.