Answer:the Lewis and Clark Expedition gave others confidence to head west.
Explanation: I can only conclude that young Sacajawea held false hope of being rescued by her tribe -otherwise why would she forsake all her relations and our land.
I believe that the answer Is all of the above.
We should all know that gravity keeps the planets in orbit. Also, electrons can leave an atom if they have enough energy.
I hope this helps!
This would be an example of primary reinforcement
