In 1776, the statement that all men are created equal is referred to?

This is a reference to the establishment of the core concept and principle of equality, and freedom that backs the United States of America. This can be found in the second paragraph of the famous Declaration of Independence, which was written by John Adams, Thomas Jefferson, Benjamin Franklin, Roger Sherman, and Robert R. Livingston. Though the phrase itself was penned by Jefferson.

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; ///self- learning;