The third excerpt is structured correctly.
Factors exogenous to a country's current level of income are identified as being responsible for some 84% of the increase in life expectancy during the period. ... But neither country's mortality has been directly affected by its own income; the effect shows up as a shift in the curve.
2 and 4 i assume would be the correct answer
<span>At
the art fair, he bought an unusual and beautiful gift for his
aunt.
Which word is the indefinite article?</span>
Answer:
The word that is the indefinite article in the sentence shown above
is An. This is due to the fact that there are two indefinite articles
in English which are a and an. In this sentence “an unusual and
beautiful gift” is where we can find the indefinite article.
<span>I
hope it helps, Regards. </span>
