<p>Explanations to these?</p>
<p>11) Intimacy, love and marriage are three different, if interrelated, subjects.</p>
<p>a) different, if interrelated, subjects
b) interrelated subjects, being , however, different
c) different subjects, whereas they are interrelated
d) different subjects when interrelated
e) subjects that are different although being interrelated</p>
<p>Ans: A (why?)</p>
<p>17) When Marie Curie shared the 1903 nobel Prize for Physics with two other scientists-her husband Pierre Curie and Henri Becquerel- she had been the first woman to win the prize. No Error</p>
<p>Ans: C.. Why?</p>
<p>21) Most major air pollutants cannot be seen, although large amounts of them concentrated in cities are visible as. No Error</p>
<p>Ans: E...I thought that "..of them..." would be an error, why isnt it?</p>
<p>22) The light emitted by high-intensity-discharge car headlights are very effective in activating the reflective paints of road markers, therby making driving at night safer. No Error</p>
<p>Ans: A...how?</p>
<p>24) The museum is submiting proposals to several foundations in the hope to gain funds to build a tropical butterfly conservatory. No Error.</p>
<p>Ans: D (For this i thought that it would be not "in" the hope but "with" the hope...?</p>