Догадайтесь, о чем идет речь в следующих вопросах:1) My first is

Догадайтесь, о чем идет речь в следующих вопросах:


1) My first is an empty space in something,
But you should omit the last "E",
My second is the suffix in the most adverbs,
My whole is the evergreen tree branches of which are used for Christmas decorations.
2) My first is water that falls in small drops from clouds,
But replace the second A into E,
My fourth is the suffix to form the comparative,
My whole is the animal that helps Santa to travel.