The correct answer is letter D. Marine Ecosystem. Thirty-two percent of the world's producers is in the marine ecosystem. It is where most of the aquatic resources are located - mangroves, lagoons, reefs, sea floor, etc. The salt content here is higher compared to freshwater.
Looking at the positions of most if not all volcanoes, earthquakes, and major mountain belts, they are distributed mainly around the tectonic plate boundaries.
This is because the boundaries push further away, move closer together, and slide against each other (convergent, divergent, transform), thus creating either mountains, volcanoes, or earthquakes.
This could possibly be because the more advanced countries are more advanced in technology and have vehicles, and those vehicles produce CO2. And because of the greenhouse gas effect the more CO2 that is produced the warmer the earth will be.
Answer:
Therapy???? That's a tough question
