Reader and bandage man know his invisible and Mrs Hall and Teddy Henfrey don’t know about his invisibility
I guessed b
but idk none of this stuff so
No taxation without representation.
<span>Mixed market economies focus on preserving as much freedom to make economic choices as possible. Governments in these economies have limited involvement in managing and regulating the economy. In contrast, command economies are focused most on preserving and requiring equal opportunities, which means governments that greatly regulate the economy. More economic systems are geared toward offering producers and consumers the freedom to make economic choices, so mixed market economies are more common in the world today.</span>
Answer:
There are 3 main reasons.
1. heat from when the planet formed and accreted, which has not yet been lost.
2. frictional heating, caused by denser core material sinking into the center of the planet.
3. heat from the decay of radioactive elements.
I hope my answer helped!