Hello!
To answer your question lets go over what Chemical Sedimentary Rock is.
Chemical Sedimentary Rocks are formed by the cementation, saturation and deposition of minerals in the solution causing them to be inorganic and preciptate.
The most known example of this is rock salt.
Of the list you have provided of possible examples the following are defined as chemical sedimentary rock:
- Rock Salt
- Iron Ore
- SOME limestones
I hope this helps in answering your question.
Tundras and deserts have a number of similarities such as their lack of water or how organisms that inhabit them are have special features to survive their extreme weather. Both are nearly unsustainable for human life and have just like the tundra, deserts have freezing temperatures at night.
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.".
