Where did the first civilization form

answer; ///i believe that the correct answer is because the house and senate frequently pass different versions of the same bill;

debating and finalizing the detail of the policy

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.