Questions

Which one of the following is an insulator?

Bauxite is an ore/mineral of

The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: World War I began in 1914, after the assassination of Archduke Franz Ferdinand, and lasted until 1918.
Q: Thanks to new military technologies and the horrors of trench warfare, World War I saw unprecedented levels of carnage and destruction.
R: During the conflict, Germany, Austria-Hungary, Bulgaria and the Ottoman Empire (the Central Powers) fought against Great Britain, France, Russia, Italy,
Romania, Japan and the United States (the Allied Powers).
S: By the time the war was over and the Allied Powers claimed victory, more than 16 million people – soldiers and civilians alike – were dead.

In the following question, a short passage with one of the lines in the passage missing and represented by a blank is given. Select the best out of the five answer choices given, to make the passage complete and coherent (coherent means logically complete and sound).
There is a fairly universal sentiment that the use of nuclear weapons is clearly contrary to mortality and that its production probably so, does not go far enough. These activities are not only opposed to mortality but also to the law. If the legal objection can be added to the moral, the argument against the use and manufacture of these weapons will considerably be reinforced. Now the time is ripe to evaluate the responsibility of scientists who knowingly use their expertise for the construction of such weapons, which has a deleterious effect on mankind.
How appropriate it is that all this valuable skill should be devoted to the manufacture of weapons of death in a world of poverty is a question that must touch the scientific conscience.

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

I wish you(A)/can hear(B)/yourself talking.(C)/No error(D)

If 2x2+2y2=4a the find the value of 2ax2-a+2ay2-a

$$\begin{gathered} ∆ABC is similar to ∆PQR. If ratio of perimeters of ∆ABC and ∆PQR is 1:2 and \\ if PQ = 10 cm then what is the length of AB (in cm)? \end{gathered}$$

Which country has become the first country to ban reef toxic sunscreen by 2020?