Sponges and sea-slugs and other invertabrates
The reasons for the suggested disappearance of the Indus Valley civilization were droughts and a decline in trade with Egypt and Mesopotamia, ancient civilizations which were not too extended far away from the Indus Valley. The droughts would have caused famine. Other reports equally suggest that immigration by new peoples, deforestation, floods or changes in the course of river could have affected the Indus Valley Civilization.
Answer: 3:57
Explanation: I’m assuming this is it. 1 minutes every 3 hours if correctly set at 7 am. So 7. 8 9 10 (1 minute) 11 12 1 (2 minutes) 2 3 4 (3 minute) so 4:00 - 3 minutes = 3:57 if that makes sense.
Today presidents direct and oversee their cabinet and divert resources to various departments, agencies, and private organizations. 100 years ago, mega corporations from the 19th century still existed and presidents like Teddy Roosevelt had to use “big stick politics” to bend economic powerhouses such as JP Morgan and the Rockefellers. Presidents nowadays have more freedom to control the economy to their whim, for better or worst.