Question : Arsenic problem in India is primarialy due to
Option 1: Overexplotitation of coal in Bihar and Bengal
Option 2: Overexploitationn of arsenopyrite in the hinterland
Option 3: Overexploitation of ground water in the affected areas
Option 4: Overexploitation of surface water in the affected areas
Correct Answer: Overexploitation of ground water in the affected areas
Solution : The correct answer is Overexploitation of ground water in the affected areas.
Arsenic, a naturally occurring element present in the Earth's crust, is ubiquitously distributed in the environment, encompassing the atmosphere, bodies of water, and terrestrial regions. In its inorganic state, it poses severe toxicity risks. Arsenic is naturally present in deep underground water reservoirs, and when there is extensive extraction of groundwater, it can lead to the release of arsenic into the surrounding environment. Additionally, sources of arsenic pollution include high-temperature industrial processes such as those seen in coal-fired power plants, volcanic activity, wildfires, and similar phenomena.
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Question : The purest form of water is
Option 1: Tap water
Option 2: Rain water
Option 3: Ground water
Option 4: Distilled water
Question : Which of the following statements is not correct about surface tension?
Option 1: Surface tension is typically measured in dynes cm.
Option 2: The shape of the water drop is spherical due to surface tension.
Option 3: At room temperature, the surface tension of water is less than ethyl alcohol.
Option 4: The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.
Question : In hydel power station, the motion produced in turbines is due to:
Option 1: flow of water
Option 2: burning of coal
Option 3: burning of diesel
Option 4: production of steam
Question : Water cycle refers to
Option 1: an integrated attempt to recycle water in relatively arid regions
Option 2: the constant movement of water from the ocean to land and back to the ocean once again
Option 3: scientific management of water in areas excessively plagued with waterlogging
Option 4: water distribution in relatively dry areas
Question : Which of the following regions has more seasonal contrast than other regions of India?
Option 1: Interiors of India
Option 2: Coastal areas of India
Option 3: Hilly areas of India
Option 4: Islands of India
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