The correct answer would be: Cultural and environmental factors.
Hope I helped you out! c:
Answer:
The Harappans depended on annual <u> </u><u>monsoon</u><u> </u> winds to bring rain from the Indian Ocean to Southeast Asia.
Explanation:
All other factors, except monsoon, given in the options are hazardous as they cause destruction to wealth and life. So, for sure, Harappans won't depend on annual factors like these which would harm them instead of benefitting.
Furthermore, The cycle of monsoons can be observed following a pattern, and people can be somewhat sure about when to expect Rains. But tornadoes, floods, and hurricanes don't follow any such pattern and, thus, might not add in annual factors.
It created the War Production Board, an agency to keep track on the production of military needs in industries. It changed the industries to produce guns, and materials needed in the army. After the war, this was WPB also end its military manufactures.