Interested in learning how intelligence quotient affects a woman's marital prospects, researchers gave intelligence tests to a sample of 11-year-old girls, then retested them and asked about relationship status several times over the next 40 years. this type of study has a design.

longitudinal            

Explanation:

Longitudinal design: The term longitudinal study is also referred to as a panel study or longitudinal survey. This is a type of research design that encompasses repeated observation of specific variables for long and short-periods, for example, people. A longitudinal study is purely qualitative.

Example: A person being examined based on certain characteristics of different age in his or her life.

Types:

1. Panel study.

2. Cohort study.

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.

they protect against unsafe foods and medicines being sold

explanation: