In a system, changes in one part can control what goes on in the system as a whole. Which answer explains how different parts of a system can be interconnected?
OA. The outputs of a system are never changed by the inputs of the system
OB. The output from one part can become the input to other parts of the system,
OC. The outputs of a system always leave the system
OD. The inputs of a system always come from outside the system,
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Abird sitting high in a tree is an example of what type of wnergy

Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.

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.