The right of children mentioned in the first stanza is the right to live a life without fright, to sleep peacefully through the night, and without fear for their precious lives.

Here are the answers to the questions based on the poem:

1. The right of children mentioned in the first stanza is the right to live a life without fright, to sleep peacefully through the night, and without fear for their precious lives.

2. Adults should respect the rights of children, as they are described as guardians.

3. Some words that rhyme in the poem are:

   • fright and night
   • peace and ease
   • future, please, and knees

4. A guardian is an adult who protects and cares for children, ensuring their safety and well-being.

5. If you realize your classmate's rights are being violated by their parents, the right thing to do is to report it to a trusted adult, such as a teacher, school counselor, or another responsible adult who can help.

6. The phrase "Children are the future" means that children will grow up to become the adults who will lead, innovate, and shape society. They represent the hope and continuation of humanity.