From four corners of a square sheet of side 4 cm, four pieces,each in the shape of arc of a circle with radius 2 cm, are cut out.The area of the remaining portion is :

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#Question id: 12809

#General Aptitude

The breadth of a rectangular hall is three-fourth of its length. If the area of the floor is 768 sq. m. then the difference between the length and breadth of the hall is:

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#Question id: 11171

#Section 2: Evolution

Starlings often decorate their nests with sprigs of carrot leaves because

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#Question id: 11658

#Section 1: Ecology

Directional community changes due to the cause of succession, factors involve such as

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#Question id: 3392

#Section 2: Evolution

Color blindness is X linked recessive disorder. X+ chromosome carry a normal allele but Xc chromosome carries defective allele. When frequency of colorblindness female (0.10), colorblind male (0.30) and heterozygous female (0.20). Random matting population, what will be frequency of carrier female?

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#Question id: 12350

#Section 1: Ecology

What is the approximate current growth rate of the human population?