Listening to presidential addresses and reading about government policies are ways to

well they usually trade goods for money. they mostly trade goods with other nations

germany

explanation:

a rocket engine utilizes collected rocket explosive mass for producing its high-speed propulsive jet. rocket engines are effect engines, achieving thrust in accordance with newton's third law. maximum rocket engines use flaming, although non-combusting methods (such as cold gas thrusters) also exist.

it's d. i hope this .