Im not sure but B or c. Im sorry
Water, which is a chemical compound of hydrogen and oxygen in the ratio two hydrogen atoms for every oxygen atom, contains H2O molecules.
Plant (producer), grasshopper (herbivore) rodent (omnivore), python/snake (carnivore), eagle (carnivore) mushrooms (decomposer) These lines represent the “Animal food chain” and basically represents how one organism eats another organism while showing what they have to eat to survive which is all one ecosystem