Final answer:
True, in the post-World War II period, efforts were made to preserve and rehabilitate the nation's land, water, and wildlife resources.
Step-by-step explanation:
True, in the post-World War II period, it became evident that there was a critical need to preserve and rehabilitate the nation's land, water, and wildlife resources. Prior to this period, there had been significant exploitation of natural resources, such as deforestation, pollution, and overgrazing. However, conservation efforts gained momentum after the war, with a growing awareness of the ecological importance of preserving these resources. Policies were implemented to protect and manage natural habitats, establish national parks, and regulate hunting and fishing.