20 points. (will mark as brainiest for a good answer.) how has the discovery of 5,300-year-old ötzi, the iceman, scientists in their knowledge? ötzi, the iceman, was as old as previously thought. ötzi, the iceman, existed at a time when the climate was warm. precise knowledge about his food and clothing is available. humans from that period are exactly same as modern humans.

Otzi The iceman Existed at a time when the climate was warm

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.

answer: (fluidity)is the correct answer.

explanation: because of this characteristic, success on the battlefield depends in large part on the ability to adapt to proactively change events to our advantage as well as to react quickly to constantly changing conditions