Define risky behaviours

Explanation:

Risky behavior can be defined then as 'one's purposive participation in some form of behavior that involves potential negative consequences or losses (social, monetary, interpersonal) as well as perceived positive consequences or gains'

risky behaviour are acts that are slightly deadly to a person

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.