Sentence clauses !

whenever there are animal droppings, there is a constant rain of organic matter that

feeds the bottom dwellers.

the underlined part of sentence two is an example of clause.

a. adverbial
b. adjectival
c. noun
d. independent

its uncertain what will happen to the rest of the food chain

when the bottom dwellers become extinct.


the underlined part of sentence 3 is what type of clause?

a. adverbial
b. adjectival
c. noun
d. independent