In paragraph 9, what the phrase "drew him on by artful questions" means is that he questioned him to try to gain privileged information.
He had to find out some information that was very important to him, so he started questioning him furtively so as to get to the bottom of things.
I’d believe the informal would be “Can you...?”
I think Grendel get stuck in a tree because of his careless curiosity of the world above him, that of the humans. He know nothing about that world because he was used to his own world in the underground however he still get tempted to explore. He was also attacked by a bull there because he looks different from the rest of the creatures above.
<span>The continents were once one large land mass
This seems most likely since geology focuses on rocks, etc. </span>
<span>Whenever there is a calamity, all I think about is my mom. I want her to be safer than I am.</span>
