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Earn 100

The Dancing Girl statue was discovered in which ancient civilization?
(a)Indus Valley
(b)Mesopotamian
(c)Egyptian
(d)Greek

50% studentsanswered this correctly
Important Questions on Thinkers, Beliefs and Buildings
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Column – I | Column – II | ||
---|---|---|---|
Homo habilis | 900 cc | ||
Homo neanderthalensis | 1350 cc | ||
Homo erectus | 650-800 cc | ||
Homo sapiens | 1400 cc |
Select the correct option.

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Study the following table
. | Group | Ancestors | Evolved in |
Pisces | Osteolepids | Silurian period | |
Amphibia | Osteolepids | Devonian period | |
Reptilia | Labyrinthodonts | Jurassic period | |
Aves | Therapsids | Carboniferous period | |
Mammalia | Therapsids | Triassic period |

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Match the following
Set-I | Set-II | ||
(A) | Cyanognathus | (I) | Reptiles & birds |
(B) | Archaeopteryx | (II) | Amphibians & reptiles |
(C) | Seymouria | (III) | Reptiles & mammals |
(D) | Eusthenopteron | (IV) | Protochordates & fishes |
(V) | Fishes & amphibians |
The correct match is

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Consider the following statement:
(I) All isotopes of elements have the same number of neutrons.
(II) Only one isotope of an element can be stable and non-radioactive.
(III) All elements have isotopes.
(IV) All isotopes of Carbon can form chemical compounds with Oxygen.
The correct option regarding an isotope is:

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(i) The earliest organisms that appeared on the earth were non-green and presumably anaerobes.
(ii) The first autotrophic organisms were the chemoautotrophs that never released oxygen.
Of the above statements which one of the following options is correct?

