Question

Compare the productivity of terrestrial and aquatic ecosystems against the percent of Earth’s surface area they occupy

Answer 1

Terrestrial ecosystems occupy 55,660,000 mi² (144,150,000 km²), or 28.26% of Earth's surface.

Answer 2

Aquatic ecosystem covers about 70% of the earth surface of land while terrestrial ecosystem covers about the remaining 30% of the earths surface, however the productivity of terrestrial ecosystem is much higher than that of the aquatic ecosystem despite it being twice smaller than the aquatic, this is due high value resources achieved from the earths surface.