Explain why the United States will have a less severe demographic problem in the future than countries such as China and Japan

be cause the us is sane

Explanation:

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.

answer; correlational;