Answer:
Basic building block for development of life on earth is the Oceans
Explanation:
The oceans are an important source of life on the Blue planet, as its only due to these oceans that life on earth has been created and sustained for so long. Oceans hold the storehouse of various minerals and biological diversity in terms of plane and animal matter. They represent the underwater biomes on earth. The ancient oceans harbor small life forms that originated in the formation of earth in singled celled formations.
