Directions for the following 4 (four) items:
Read the following passage and answer the items that follow. Your answers to these items should be based on the passage only.
Passage-1
Natural selection cannot anticipate future environments on the earth. Therefore, the set of existing organisms can never be fully prepared for environmental catastrophes that await life. An outcome of this is the extinction of those species which cannot overcome environmental adversity. This failure to survive, in modern terms, can be attributed to the genomes which are unable to withstand geological vagaries or biological mishaps (infections, diseases and so on). In biological evolution on the earth, extinction of species has been a major feature. The earth may presently have up to ten million species, yet more than 90% of species that have ever lived on the earth are now extinct. Once again, the creationist doctrines fail to satisfactorily address why a divine creator will firstly bother to create millions of species and then allow them to perish. The Darwinian explanation for extinct life is once again simple, elegant and at once convincing - organisms go extinct as a function of environmental or biological assaults for which their inheritance deems them ill-equipped. Therefore, the so-called Darwinian theory of evolution is not a theory at all. Evolution happens - this is a fact. The mechanism of evolution (Darwin proposed natural selection) is amply supported by scientific data. Indeed, to date no single zoological, botanical, geological, paleontological, genetic or physical evidence has refuted either of the central two main Darwinian ideas. If religion is not taken into consideration, Darwinian laws are acceptable just like the laws proposed by Copernicus, Galileo, Newton and Einstein - sets of natural laws that explain natural phenomena in the universe.
According to the passage, natural selection cannot anticipate future environments on the earth as
1. species not fully prepared to face the environmental changes that await them will face extinction
2. all the existing species would get extinct as their genomes will not withstand biological mishaps
3. inability of the genome to withstand environmental changes would result in extinction
4. extinction of species is a common feature
Select the correct answer using the code given below.
The question asks why natural selection cannot anticipate future environments, according to the provided passage. We need to identify the statements that are directly supported by the passage as reasons for this inability or its consequences.
C) 1, 3 and 4
Statements 1, 3, and 4 are all explicitly stated or strongly implied as consequences or reasons in the passage regarding natural selection's inability to anticipate future environments. The passage states that organisms are not fully prepared (1), their genomes cannot withstand changes (3), and extinction is a common feature (4) due to this.
The question asks why the passage suggests that the Darwinian theory of evolution is not a theory at all. Since the answer must be based on the passage only, we need to identify the explanation immediately preceding this conclusion and understand the relationship between natural selection, environmental challenges and species extinction.
Understand the central idea of the passage:
The passage explains that natural selection cannot anticipate future environmental conditions. Therefore, organisms cannot always be fully prepared for environmental catastrophes or biological challenges.
Species that cannot withstand such challenges may eventually become extinct.
Identify the Darwinian explanation for extinction:
The passage states that organisms become extinct as a result of environmental or biological assaults for which their inherited characteristics leave them inadequately equipped.
This means that survival depends on whether organisms possess inherited characteristics that enable them to withstand changing environmental and biological conditions.
Understand the relationship between extinction and evolution:
According to the passage, extinction is a major feature of biological evolution.
Species that cannot overcome environmental adversity or biological challenges may disappear, while organisms possessing suitable inherited characteristics are more likely to survive and reproduce.
Thus, extinction is explained through natural processes rather than through supernatural intervention.
Connect the explanation with the author's conclusion:
Immediately after explaining extinction as a function of environmental and biological assaults, the author states that the so-called Darwinian theory of evolution is not a theory at all and that evolution is a fact.
The author presents the Darwinian explanation of extinction as a convincing account of a natural phenomenon.
Therefore, the option describing extinction as a function of environmental and biological assaults most directly reflects the reasoning leading to the conclusion.
Identify the correct answer:
The passage directly connects the Darwinian explanation of extinction with the author's statement about evolution.
Therefore, Option B is the correct answer.
Correct Option: B) extinction is a function of environment and biological assaults — The passage explains that organisms become extinct when they encounter environmental or biological challenges that their inherited characteristics cannot withstand. The author uses this explanation of extinction to support the conclusion that evolution is an established natural phenomenon. Hence, Option B is the correct answer.
A) it does not satisfy the creationist doctrine: This is incorrect because the passage criticises creationist doctrines for failing to explain why millions of species were created and subsequently became extinct. However, the author's immediate explanation for Darwinian evolution is based on natural processes rather than the requirements of creationist doctrine.
C) there are no evidences to refute it: The passage does state that no scientific evidence has refuted the central Darwinian ideas. However, this statement appears after the author's conclusion and provides additional scientific support for Darwinian evolution. Option B more directly reflects the explanation of extinction immediately preceding the conclusion.
D) existence of organisms is attributed to a creator: This is incorrect because the passage questions creationist explanations and presents Darwinian evolution as a natural explanation for the survival and extinction of species.
With reference to the passage, the following assumptions have been made:
1. Only species that have the ability to overcome environmental catastrophes will survive and perpetuate.
2. More than 90% of the species on the earth are in the danger of getting extinct due to drastic changes in the environment.
3. Darwin's theory explains all the natural phenomena.
Which of the above assumptions is/are valid?
The problem states that the passage says species that cannot overcome environmental adversity go extinct, that more than 90% of species that have ever lived are now extinct, and that Darwinian laws explain natural phenomena alongside the laws of other scientists. This means that we must check whether each assumption matches these points exactly, without misreading the figures or overstating the scope of Darwin's theory. We will test each of the three assumptions against the relevant lines of the passage.
Examine statement 1 (Only species that have the ability to overcome environmental catastrophes will survive and perpetuate):
Examine statement 2 (More than 90% of the species on the earth are in the danger of getting extinct due to drastic changes in the environment):
Examine statement 3 (Darwin's theory explains all the natural phenomena):
Combine the results: Only assumption 1 is supported by the passage.
Correct Option: A) 1 only — Species that cannot overcome environmental adversity go extinct, so only those able to withstand catastrophes survive. The 90% figure refers to species already extinct, and Darwin's laws are one of several sets of natural laws.
Passage-2
With steady economic growth, higher literacy and increasing skill levels, the number of Indian middle-class families has gone up exponentially. Direct results of the affluence have been changes in dietary patterns and energy consumption levels. People have moved to a higher protein-based diet like milk products, fish and meat, all of which need significantly more water to produce than cereal based diets. Increasing use of electronic and electric machines/gadgets and motor vehicles needs more and more energy and generation of energy needs water.
Which one of the following statements best reflects the crux of the passage?
People should be persuaded to continue with the mainly Indian traditional cereal-based diets.
India needs to focus on developing agricultural productivity and capacity for more energy generation in the coming years.
Modem technological developments result in the change of cultural and social behaviour of the people.
Water management practices in India need to change dramatically in the coming years.
The passage discusses the impact of economic growth and increasing affluence on dietary patterns and energy consumption in India. It highlights that these changes lead to a significantly higher demand for water, both for food production (protein-based diets) and energy generation. The core message is about the increasing pressure on water resources due to changing lifestyles.
D) Water management practices in India need to change dramatically in the coming years. This statement directly addresses the core implication of the trends described in the passage. The passage highlights that increased affluence leads to dietary changes (more protein, requiring more water) and higher energy consumption (energy generation requires water). Both these trends put immense pressure on water resources. Therefore, the crux of the passage is the urgent need for improved water management to cope with these growing demands.
To find the total number of seconds, we need to convert each given unit of time (weeks, days, hours, minutes, and seconds) into seconds and then sum them up. We will use the standard conversion factors for time units.
Convert x weeks to seconds:
So, 1 week = \(7 \times 24 \times 60 \times 60\) seconds
\[ 1 \text{ week} = 604800 \text{ seconds} \] Therefore, x weeks = \(604800x\) seconds.
Convert x days to seconds:
1 day = \(24 \times 60 \times 60\) seconds
\[ 1 \text{ day} = 86400 \text{ seconds} \] Therefore, x days = \(86400x\) seconds.
Convert x hours to seconds:
1 hour = \(60 \times 60\) seconds
\[ 1 \text{ hour} = 3600 \text{ seconds} \] Therefore, x hours = \(3600x\) seconds.
Convert x minutes to seconds:
1 minute = 60 seconds
Therefore, x minutes = \(60x\) seconds.
x seconds:
This is already in seconds, so it is \(x\) seconds.
Calculate the total number of seconds:
Add all the converted values:
\[ \text{Total seconds} = 604800x + 86400x + 3600x + 60x + x \] \[ \text{Total seconds} = (604800 + 86400 + 3600 + 60 + 1)x \] \[ \text{Total seconds} = 694861x \]
D) The total number of seconds is \(694861x\).
This problem involves constructing a family tree based on the given relationships and then identifying the correct statement among the options. We will deduce the gender and relationships of each member step-by-step.
D) T is the granddaughter of Q
P is the son of Q (and R). T is the child of P. Therefore, T is the grandchild of Q. Since T's gender is unknown, 'grandchild' is the most accurate general term. However, in the context of the options, if T is a granddaughter, it implies T is female. Let's re-evaluate if T's gender can be determined. The problem states "U is the mother of T and S is the daughter of U". This implies S and T are siblings. S is female. T's gender is not explicitly stated. However, if T is the child of P and U, and P is the son of Q, then T is indeed the grandchild of Q. If T is female, she is the granddaughter. If T is male, he is the grandson. Without T's gender, we cannot definitively say T is a granddaughter. However, let's check other options.
Let's re-examine the options carefully. If Q is the grandfather, Q must be male. If Q is the grandmother, Q must be female. The problem does not specify the gender of Q or R beyond being a couple. Let's assume the question implies that one of the options must be correct based on the given information. If T is a grandchild of Q, then option D is plausible if T is female. Let's check if other options are definitively wrong.
Let's assume R is male and Q is female (or vice versa). P is their son. P is married to U. S and T are their children. So R and Q are the grandparents of S and T. S is a granddaughter. T is a grandchild (could be grandson or granddaughter).
If T is a granddaughter, then D is correct. Since S is a granddaughter of Q, and T is her sibling, T is also a grandchild of Q. If the question implies that one option is correct, and T's gender is not specified, we must consider the possibility that T is female for option D to be correct. Given the other options are clearly incorrect, D is the most likely correct answer, implying T is female.
Considering the ambiguity of T's gender and Q's gender, if one option must be correct, option D is the most plausible. S is a granddaughter of Q. T is S's sibling and also a child of P and U. Thus, T is a grandchild of Q. If T is female, then T is the granddaughter of Q. In multiple-choice questions of this type, if other options are clearly incorrect or unconfirmable, the most likely correct option is chosen, implying any missing gender information that makes it true.
Consider the Question and two Statements given below in respect of three cities P. and R in a State:
Question: How far is city P from city Q?
Statement-1 : City Q is 18 km from city R
Statement-2 : City P is 43 km from city R.
Which one of the following is correct in respect of the Question and the Statements?
Statement-1 alone is sufficient to answer the Question
Statement-2 alone is sufficient to answer the Question
Both Statement-1 and Statement-2 are sufficient to answer the Question
Both Statement-1 and Statement-2 are not sufficient to answer the Question
The problem asks us to determine if the given statements are sufficient to find the distance between city P and city Q. We need to analyze each statement individually and then together to see if a unique distance can be determined.
D) Both Statement-1 and Statement-2 are not sufficient to answer the Question. This is correct because even with both statements, we cannot determine a unique distance for PQ. The cities P, Q, and R can be arranged in multiple ways (collinear or forming a triangle), leading to different possible distances for PQ.
Two Statements followed by four Conclusions are given below. You have to take the Statements to be true even if they seem to be at variance from the commonly known facts. Read all the Conclusions and then decide which of the given Conclusions logically follows/ follow from the Statements, disregarding the commonly known facts:
Statement-1 All pens are books.
Statement-2: No chair is a pen.
Conclusion-I: All chairs are books.
Conclusion-II: Some chairs are pens.
Conclusion-III: All books are chairs.
Conclusion-IV: No chair is a book.
Which one of the following is correct?
Only Conclusion-I
Only Conclusion-II
Both Conclusion-III and Conclusion-IV
None of the Conclusions follows
This is a syllogism problem. We need to evaluate the given conclusions based on the provided statements. We can use Venn diagrams to visually represent the statements and then check which conclusions logically follow. Remember to take the statements as true, even if they contradict common knowledge.
Let's represent the statements using Venn diagrams:
Statement-1: All pens are books.
Statement-2: No chair is a pen.
Now let's evaluate each conclusion:
Conclusion-I: All chairs are books.
Conclusion-II: Some chairs are pens.
Conclusion-III: All books are chairs.
Conclusion-IV: No chair is a book.
Since none of the conclusions logically follow from the given statements, the correct option is D.
D) None of the Conclusions follows
Three Statements followed by three Conclusions are given below. You have to take the Statements to be true even if they seem to be at variance from the commonly known facts. Read all the Conclusions and then decide which of the given Conclusions logically follows/ follow from the Statements, disregarding the commonly known facts:
Statement-1: Some doctors are teachers.
Statement-2 All teachers are engineers.
Statement-3: All engineers are scientists.
Conclusion-I: Some scientists are doctors
Conclusion-II: All engineers are doctors.
Conclusion-III: Some engineers are doctors
Which one of the following is correct?
Only Conclusion-I
Only Conclusion-II
Both Conclusion-I and Conclusion-III
Both Conclusion-I and Conclusion-II
This is a syllogism problem. We need to analyze the given statements and determine which conclusions logically follow. We can use Venn diagrams or logical deduction to solve this.
This means there is an overlap between the set of doctors and the set of teachers. Let's denote Doctors as D and Teachers as T. So, \(D \cap T \neq \emptyset\).
This means the set of teachers is entirely contained within the set of engineers. Let's denote Engineers as E. So, \(T \subset E\).
This means the set of engineers is entirely contained within the set of scientists. Let's denote Scientists as S. So, \(E \subset S\).
From Statement-2 and Statement-3, we have \(T \subset E \subset S\). This implies that all teachers are also scientists.
From Statement-1, we know some doctors are teachers. Since all teachers are engineers (Statement-2), it means that those doctors who are teachers are also engineers. Therefore, some doctors are engineers.
Since all engineers are scientists (Statement-3), it means that those doctors who are engineers are also scientists. Therefore, some doctors are scientists.
As deduced in step 4, since some doctors are teachers, and all teachers are engineers, and all engineers are scientists, it logically follows that some doctors are scientists. If some doctors are scientists, then some scientists are doctors. This conclusion is TRUE.
We know that some doctors are teachers, and all teachers are engineers. This only tells us that some engineers are doctors (specifically, those engineers who are teachers and also doctors). It does not mean that all engineers are doctors. There could be engineers who are not doctors. This conclusion is FALSE.
From Statement-1 (Some doctors are teachers) and Statement-2 (All teachers are engineers), it follows that those doctors who are teachers are also engineers. Therefore, there is an overlap between doctors and engineers. This means some engineers are doctors. This conclusion is TRUE.
Conclusions I and III are true.
C) Both Conclusion-I and Conclusion-III
This is a circular seating arrangement problem. We need to deduce the seating positions of eight students around a circular table based on the given clues. We will use a systematic approach, drawing possible arrangements and eliminating those that contradict the given information.
Let's use the two valid arrangements found:
Correct Option: D) None of the above
Since none of the options A, B, or C are true in all possible valid arrangements (or even in the first valid arrangement we found), the correct answer is D.