I have no clue u mean the game halo?
Answer:
C. Trees (specifically to your area)
D. Bugs or other animals that would eat a Tree.
E. Decomposers are worms or fungi(mushrooms).
F. Producer gets it's energy from the decomposers who brake down dead or left over waist from consumers.
G. The consumers getting energy from the producers.
Answer: The Louisiana Purchase was the purchase of imperial rights to the western half of the Mississippi River basin from France by the United States in 1803.