Is the word leaf countable or uncountable noun?

Asentence teacher gives the following speech. prepare a brief speech to accompany your science project. the speech will be presented to a faculty panel selected as judges. include a summary of your hypothesis, methods, and results. provide an explanation of any pictures or charts one of your poster. also share any complications you encountered during the science fair process. who is the intended audience for the teachers speech? a. young students. b. peers at the science fair. c. teacher evaluators. d. science professionals

Which underlined word in the sentence is a demonstrative adjective? these brown shoes fit my feet very well.

What does robert frost accomplish by using blank verse in his poems he mimics the sound of natural speech. he establishes a sense of formality. he establishes order through rhyme. he makes his poems original by breaking the rules.