Ruler, Key, Compass, Pencil
Erosion of farmland, overuse of both surface and groundwater, dwindling supplies of finite fossil fuels, and escalating extinction of plant and animal species imperil the ability of the earth's resources to meet the needs of such enormous numbers of humans. The food situation worldwide is becoming critical
Question A
Correct option is (iii) sought after, as it is indicated in the passage that "I was overwhelmed with gratuitous advice". Gratuitous means not required, or not necessary. Hence the author was not asking for advice, it was not sought after
Question B
Correct option is (iv) when he was on the steamer. It is indicated at the end of the passage that "The fellow passengers in the steamer began to advise us". After reading the statement, "I should want them after leaving Aden", you might feel that the correct option could be (ii) when he was in Aden, but the passage doesn't give enough information to confirm that the advice was give at the point when he was in Aden
Question C
The correct option is (iii) meat-eating would keep him healthy. It is indicated in the passage that "The majority of them said I couldn't do without meat in the cold climate. I would catch consumption.". Hence, the meat was supposed to keep him healthy and not catch consumption.
Question D
The correct option is (iv) he had promised his mother he would not do so. It is indicated in the passage that "My mother, before consenting to my departure, had exacted a promise from me not to take meat. So, I was bound not to take it, if only for the sake of the promise.".
It is impossible to build a drainage system on the outside of the Sao Francisco river as buildings are built on the outside of the foundation.
The Subarnarekha is developing a small drainage system.
The Amazon basin is the largest drainage basin in the world.
The Urugay drainage system includes the greater part of southeastern Brazil, Paraguay, southeastern Bolivia and northern Argentina
So i would suggest putting the Amazon as it is the most common known and largest. Remember to use geographical terms!
That point is in southwestern Manitoba, Canada, about 125 miles
west of Winnipeg.
Note:
A latitude and longitude define a single point on Earth, so it's not possible
for a whole country to be located right there ... not even a very small country.