These are antonyms!!
Resistant means that something can't affect it (the resistant object), or has a hard time affecting it. For example, water resistant shoes aren't easily affected by water; water cant pass through them as easily as non-water resistant shoes.
Yielding means that something is flexible or is influenced by another thing easily. For example, when you "yield" when driving, you are letting the other cars go before you; or, when an object "yields" to pressure, it is bending under pressure (though not quite breaking).
In summary: resistant means nothing can touch it, while yielding means that things easily affect it; thus, antonyms.
Answer:
an analytical report about pollution
Before you read a piece of fiction, you should____.
"establish a purpose for reading."
Fiction can be a literature in the form of prose, that describes imaginary events or people. Also, it is a belief or statement that is false, but is often held to be true because it is beneficial to do so. That is why establishing a purpose for reading is needed.
