What is one sign that you re not getting enough sleep?
a. you wake up naturally without an alarm.
b. you have just enough daytime energy before falling asleep at night.
c. you can t focus on a task.
d. you re able to skip a daytime nap without negative consequences.

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; developmental;