Plllz help ! What is an example of static
electricity?

A. turning on a flashlight to see in the dark

B. plugging in a toaster and toasting a slice of bread

c. closing a switch to complete a circuit and light a bulb

D. pulling off a wool cap and having a person's hair stand on end

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Ineed the answer to question 1 , i’m desperate

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.