Answer:
Coal and oil (if there are two answers)
Answer:
C: new, higher-yield crops
Explanation:
All of the other answers are problems while C is a positive scenario.
Arthropods are a group of organisms which possess an exoskeleton, <span>jointed appendages, and segmented bodies. This group mostly includes insects, arachnids, and crustaceans. Therefore, the answer to the question above would be option C: jointed appendages. Hope this helps.</span>