3. If coal starts in swamps, how do you know you are at a swamp (remember prior knowledge)? 4. What is the difference between coal and oil/gas?
5. What are the different types of power plants?
6. List all types of air pollution generated from these plants.

Ithink it’s c or b for the answer.

D. peatlands,grassland,swamps

Ibelieve the answer is relative humidity  because it makes more sense that way. solar flares usually occur in space it doesn't affect the earth, well it could but it wont make a significant damage.  latitude is land it doesnt do anything. prevailing winds, i dont know the correct meaning for this but i doubt that affects the land so it has to be relative humidity.

Although i don't know what is the simulated system, starfish are predators that eat mostly  microalgae,  snails, sponges, bivalves, mussels and other small marine animals. removing starfish from any system would definitely increase this animals that they prey.