Frodo is actually sitting a ways back in the cart from Gandalf, but because the seats they are on are not actually shown and compared, and the side of the cart is the same, the audience gets the effect that Frodo is just smaller, and not actually sitting back.
He made him leave the Shire with Frodo.
frodo bagins the hobbit FAMILY FEUD: frodo gandalf gollum legolas aragorn sam gimli
They were close to him, and knew that something was afoot, but not knowing what that was, they had Sam spy on him. (In the book) In the movies, they knew because Sam was roped into it without a choice by Gandalf, and Merry and Pipin knew only beause they ran into him, and desired to help when the saw that danger was following him.
Frodo did volunteer. It was Gandalf's belief that the ring chose him, and possibly knew it would destroy him to take it away. Also, Gandalf had a high regard for Hobbits, and that they could resist it's temptation longer than any of the other races, because of their lack of desire for power.
no
Frodo feels a sense of responsibility and fear after talking to Gandalf about having the ring in his possession. He realizes the weight of the task ahead and the danger that comes with it.
Frodo knew this ever since his talk with Gandalf at Bag End. Gandalf told Frodo of Gollum's history, and the sad fate of what happened to Sméagol and Déagol.
Frodo is actually sitting a ways back in the cart from Gandalf, but because the seats they are on are not actually shown and compared, and the side of the cart is the same, the audience gets the effect that Frodo is just smaller, and not actually sitting back.
Gandalf tells him
He made him leave the Shire with Frodo.
Gandalf said it to Frodo
frodo bagins the hobbit FAMILY FEUD: frodo gandalf gollum legolas aragorn sam gimli
They were close to him, and knew that something was afoot, but not knowing what that was, they had Sam spy on him. (In the book) In the movies, they knew because Sam was roped into it without a choice by Gandalf, and Merry and Pipin knew only beause they ran into him, and desired to help when the saw that danger was following him.
The group of people who set out from Rivendell with Frodo were; Sam, Merry, Pippin, Legolas, Aragorn, Boromir, Gimli and Gandalf.
Gandalf told Frodo about Gollum's history while they were at Bag End then later in the story Frodo told Gollum his true name.
take it to mt. doom and destroy it because Saurman is looking for it