Question
Statement: NASA has logged another extraterrestrial first
on its latest mission to Mars: converting carbon dioxide from the Martian atmosphere into pure, breathable oxygen. The instrument that was used for the purpose works through electrolysis, which uses extreme heat to separate oxygen atoms from molecules of carbon dioxide, which accounts for about 95% of the atmosphere on Mars.Assumptions:I. There is no natural oxygen in Mars’ atmosphere.II. Mars can now successfully support terrestrial life. In each question a statement is given, followed by two assumptions, numbered I and II. An assumption is supposed or taken for granted. You have to consider the statement and assumptions and decide which of the assumptions is implicit in the statement.Solution
The statement tells us that NASA can now produce breathable oxygen on Mars performing electrolysis on carbon dioxide, which makes up 95% of Mars’ atmosphere. It does not tell us what gases make up the remaining 5%. Therefore, we cannot conclude that there is no natural oxygen on Mars. I does not follow. Oxygen alone cannot ensure that living beings will be able to survive and thrive on Mars. There are multiple other conditions that need to be fulfilled. II does not follow. Thus, (d) is the right answer.
A paper is folded and cut as shown below. How will it appear when unfolded?
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Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which is the one ...
Select the combination of mathematical symbols from among the given options that when sequentially placed in the blank boxes will result in a balanced e...
Four of the following five figures are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group?
Find the odd one out from the given alternatives.
A statement followed by some conclusions are given below.
Statement : Nowadays, life has become very difficult without a mobile phone
...
Select the set in which the numbers are related in the same way as are the numbers of the following sets. (NOTE: Operations should be performed on the w...
Statements: Some leaves are old. All old are clothes. Some clothes are papers.
Conclusion I: All leaves are old.
Conclusion II: Some old are clothes.
Three of the following four letter-clusters are alike in a certain way and one is different.
Pick the odd one out.
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