Frayed- to become unraveled
tarnished- to become dull or spoiled after
bilge- dirty water that collects in corners
Answer:
The flight crew <em><u>are</u></em> attentive to the passengers.
<em>(</em><em>you have already given the explanation.</em><em>)</em>
As crew is a collective noun your answer will be are .
Answer:
an abundance of valuable possessions or money.
"he used his wealth to bribe officials"
the state of being rich; material prosperity.
"some people buy boats and cars to display their wealth"
plentiful supplies of a particular resource.
"the country's mineral wealth"
Explanation:
If this is not what your looking for then feel free to tell me.
Answer:
C. To find out if the call of an animal is missing
Explanation:
The more scientists listen to these kinds of recordings, the more they notice when an expected call is missing.
I hope this helps you in any shape or form.
