I would say that probably classifying natural disasters and their impact on man would most likely be considered by William Hughes as true geography as rather than just describing earth's features it would show the impact of earth's processes on man.
Oxygen was absent on earth
Answer:
if your question is what do we need to survive like the requirements, it would literately be every organ you have with food and water. you also need blood and a nervous system.
Explanation:
Answer: The transfer of the minerals of the earth to living organisms and then back to the earth again is called a cycle