The quiz questions in this paragraph are about cultural questions relating to the seas and oceans.
The seas cover more than 70 percent of the Earth’s surface. Its many benefits are :
The seas and the ocean are essential to the natural balance and the preservation of the environment.
The seas and the ocean provide us with most of the oxygen we breathe, and the sea and ocean have a key role in the viability of living organisms (human, animal, and Vegetation).
The ocean and the seas are the basis of most of the world economy, for example, seas fishing and international shipping.
The seas and the ocean also play a key role in the tourism sector.
As well as seas and ocean contain many diverse fish and living organisms.