A
The history of mankind is full of such fightings between communities, nation, and people.
B
From the primitive weapons of warfare, man has advanced to the modern nuclear weapons.
C
Ever since the dawn of civilization, man has been fighting with the man.
D
A modern war is scientific in character, but the effect is the same, wiping human existence out of this earth.
E
The only difference now seems to be in the efficiency of the instruments used for killing each other.

Solution

C, A, B, D, E.

The paragraph is about fighting among mankind. Sentence ‘C’ is the introductory sentence as it is independent and stands alone. ‘C’ is followed by ‘A’ as it talks about the history of mankind fighting. The next sentence is ‘B’ as it talks about weapons from the early stage of evolution to modern days. ‘D’ is in the logical sequence.

A
Now under liberated economy, they are learning to compete domestically and globally.
B
In India, corporations, until recently achieved success by avoiding competition, using protected and regulated domestic markets.
C
The trend is irreversible.
D
Business leaders are preparing themselves to meet competitive challenges and to avoid being swept away.

A
When human interventions alter this delicate balance, the outcomes have been seen to be disastrous.
B
In institutions also, there is a need to have in place a system of checks and balances which inhibit the concentration of power in only some individuals.
C
Nature itself is an intricate system of checks and balances, meant to preserve the delicate balance between various environmental factors that affect our ecology.
D
Group decision making, however, does not necessarily fully guard against arbitrariness and anarchy, for individual capriciousness can get substituted by collusion of group members.

Solution

C, A, B, D.

‘C’ talks about nature’s system of checks and balances and introduces the paragraph. ‘D’ follows ‘B’ as it talks about human intervention.’B’ ‘D’ is a pair as they talk about the system of checks and balances.

A
Since then, intelligence tests have been mostly used to separate dull children in school from average or bright children, so that special education can be provided to the dull.
B
In other words, intelligence tests give us a norm for each age.
C
Intelligence is expressed as intelligence quotient, and tests are developed to indicate what an average child of a certain age can do: what a 5-year-old can answer, but a 4-year-old cannot, for instance.
D
Binet developed the first set of such tests in the early 1900s to find out which children in school needed special attention.
E
Intelligence can be measured by tests.

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