Question

The largest ecosystem of the world is
(a) forest (b) grassland
(c) great lake (d) ocean

Answer 1

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The largest ecosystem of the world are oceans.

Answer 2

Answer is option "d"

Explanation:

• Oceans occupy 78 percent of Earth's surface. The open sea or pelagic part of an ocean is differentiated into a limnetic or photic zone up to 200 meters depth, where light penetrates; aphotic zone 200 to 2000 meters depth, where little light penetrates and the abyssal zone or dark zone.
• this is because the oceans incorporates all the vaporous, fluid, and strong water of the planet earth. The hydrosphere extends right from the Earth's surface descending various miles into the lithosphere and high over the hull into the environment. A large portion of the water in the climate is in vaporous structure and as it rises higher into the air it consolidates to shape mists that swear by the earth as precipitation.
• So, the right answer is option d  "ocean"