Internal conflict. The conflict is taking place within one character's mind
It would be the word "however."
This is a transition word, but also a contrasting word could be "on the contrary," but that is reverting back to the original proposition.
The tiny grains of sand are tan.
I tried to make it longer, but I didn't like how it sounded at first. I hope this is good enough. :)
A little helpful hint though: questions like these are actually quite easy. All you have to do is basically describe whatever you're being asked to, just think of some words that could "describe" the topic, for example; tan, tiny, smooth, etc can be describing words. It's super easy. ☺
The common way to format plural of a noun is to add suffixes -s or -es to the base form of the word.
For example:
apple - apples
boy - boys
table - tables
