Answer:
yes
Explanation:
because when the object vibrate they to change the enrgy from potential energy to sound energy
Citizens can help solve problems in their community by voting, helping others, donating to people in need, and sharing
The first blank is hypotheses and the second blank is test
Answer:
Over 1.5 million people have jobs. Mining is one of the best forms of employment for non-college educated workers in the civilized world.
Explanation:
Answer:
Federal system is a combination of two autonomous governments that involves general government with regional governments in a single political system.
Explanation:
Option 1. is the correct answer, a federal system refers to a system where constitutional authority is divided between a national government and state governments. It divide powers between a central national government and local state governments that are connected to one another by the national government.