I understand that an adverb describes a noun, a verb and an adjective.
I am quite clear about an adverb describing a noun and a verb but I'm confused about the part where it describes an adjective.
For eg.
1. "I love the
lush, grassy fields" - I'm quite sure lush and grassy are
adjectives of fields. The commas make it quite obvious that lush is not describing grassy. So initially, I happily thought
- with commas = adjectives (l
ush and
grassy are
adjectives)
- without commas = 1st word is the adverb (l
ush is adverb and
grassy is adjective)
Adjective
2. "She has a
green pet mouse" - In a Scholastic book on adjectives I bought for my daughter, both
green and
pet are highlighted as adjectives but there were
no commas.
That's where my confusion sets in.
Adverb
3. Her hair is
super long - I know that
super is describing
long(adjective) and not the hair(noun). So
super should definitely be an
adverb. This example is also found in a Scholastic book of adverbs that I bought.
But for these I'm quite unclear... my daughter got these from school for home learning. She is asked to circle only the adjectives and not the adverbs. My daughter has tried these answers and asked me if she is correct but I'm so confused myself..
How can I teach her? 
3. "I've never seen such
shiny black feathers".
Adjective: Shiny describes the
feather(noun) ? So
shiny and
black are adjectives.
OR
Adverb: Shiny describes the color
black(adjective), as in
shiny black,
light blue,
matt black? So
shiny is an
adverb and
black is an
adjective.
4. The camel is the
choice pack animal for dessert people.
Adverb: Choice describes
pack(adjective) ? Choice of the
pack animal.
Or
Adjective: Choice describes the
animal(noun) ? Choice animal that moves in packs.
5. The
largest remaining animals on earth, elephants tend to be very gentle.
Is
largest an adverb describing the remaining(adjective) ? I'm confused.
Can somebody help us, please ? Is there a
simpler and more straightforward way to
differentiate between
an adjective and
an adverb ?
Thank you in advance.