Which claim made in the speech is supported by reasons or evidence? "You might have to read something a few times before you understand it."

"You don't hit every note the first time you sing a song."

"You're not a varsity athlete the first time you play a new sport."

""The story of America isn’t about people who quit when things got tough."

The first one

Explanation:

This because in learning you have to get the clear picture of what you are doing before understanding drops in

yeah it is first one

Explanation:

characterization of nanoparticles is a critical step in nanomaterial production as it provides information of dimension, morphology, surface charge, distribution and degree of surface functionalization.