World Geography
The length of the tropical years (the time interval between successive occurrences of the spring equinox) is decreasing very slowly as a result of

both (a) and (b)
small, progressive change in earth's orbit around the sun
small, progressive changes in the earth's rotational speed
None of these

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World Geography
Which among the following statements is/are correct about Pastoral Herding?It is an economic activity more advanced than food gathering and hunting.Labour to enhance and nurture the supply of animal products is the chief investment of the people engaged in this occupation.Select the correct code from the options given below:

Neither 1 & 2
Only 2
Both 1 & 2
Only 1

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World Geography
Which of the following term is applied to the people of mixed European and American Indian blood in North America?

Apache
Bantu
Amerinds
Aborigines

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World Geography
The periodic rise and fall of the sea level on the earth, gives rise to tides. This is related to

infrared rays from the sun
ultraviolet rays from the sun
None of these
the position of the moon with reference to the earth and the gravitational pull exerted mainly by the moon and partly by the sun

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