Indian Geography - Study Mode

[#136] The oldest oil refinery in India is at
Correct Answer

(A) Digboi, Assam

Explanation

Solution: Digboi in Assam is an oil town that can be traced to the early 18th century, when oil was first discovered here. Digboi can proudly boast of two unique features: a 100-year-old extant oilfield and the world's oldest operating oil refinery.

[#137] The oldest mountains in India are
Correct Answer

(A) Aravalis

Explanation

Solution: The Aravalli Range, an eroded stub of ancient mountains, is the oldest range of fold mountains in India. The natural history of the Aravalli Range dates back to times when the Indian plate was separated from the Eurasian plate by an ocean.

[#138] Which of the following groups of rivers have their source of origin in Tibet?
Correct Answer

(C) Brahmaputra, Indus and Sutlej

Explanation

Solution: All the 10 major river systems of Asia including the Indus, Sutlej, Brahmaputra, Irrawady, Salween and Mekong originate in the Tibetan plateau. Among the following groups of rivers have their source of origin in Tibet are Brahmaputra, Indus and Sutlej.

[#139] Which of the following measures are effective for soil conservation in India? I. Avoiding crop rotation II. Afforestation III. Encouraging the use of chemical fertilizers IV. Limiting shifting cultivation
Correct Answer

(B) II and IV

Explanation

Solution: Measures that are effective for soil conservation in India are afforestation and Limiting shifting cultivation. Afforestation is the establishment of a forest or stand of trees (forestation) in an area where there was no previous tree cover. Shifting cultivation is an agricultural system in which plots of land are cultivated temporarily, then abandoned and allowed to revert to their natural vegetation while the cultivator moves on to another plot.

[#140] Which of the following crops needs maximum water per hectare?
Correct Answer

(C) Sugarcane

Explanation

Solution: Sugarcane crops needs maximum water per hectare. The crop water need or crop evapotranspiration consists of transpiration by the plant and evaporation from the soil and plant surface.