Which biome covers the largest part of earth's surface?

grassland
polar
marine
tropical rain forest

The oceans cover the earth's surface by approximately three-fourth or seventy five percent. It is the oldest and the largest biome. Thus, the marine biome is the largest biome which covers the earth's surface. This biome also is the common link among the other biomes in Earth.

C. marine

Explanation:

B.
Deforestation affects ecosystems on land. there are no forests underwater