The correct option is D.
Although both bacteria and amoeba are unicellular organisms, the bacteria is considered to be a prokaryote because it lacks a true nucleus and membrane bound organelles and amoeba is considered to be a eukaryote because, it has a true nucleus and well defined cell organelles.
Answer: The water levels would rise because the frozen ice caps are putting their water into the ocean. When they melt all of the water that was previously frozen is going into the ocean and raising sea levels.
Answer: Warm, moisten and purify inspired air.
Explanation: