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Q1: Which of the following can be found as pollutants in the drinking water in some parts of India?
1. Arsenic
2. Sorbitol
3. Fluoride
4. Formaldehyde
5. Uranium
Select the correct answer using the codes given below.
Q2: With reference to food chains in ecosystems, consider the following statements:
1. A food chain illustrates the order in which a chain of organisms feed upon each other.
2. Food chains are found within the populations of a species.
3. A food chain illustrates the numbers of each organism which are eaten by others.
Which of the statements given above is/are correct?
Only statement 1 is correct; food chains describe feeding relationships between different species, not within a single population, and do not specifically illustrate population numbers.
Q3: Consider the following pairs:
Tribe: State
1. Limboo (Limbu): Sikkim
2. Karbi: Himachal Pradesh
3. Dongaria Kondh: Odisha
4. Bonda: Tamil Nadu
Which of the above pairs are correctly matched?
Q4: In the context of Indian economy, 'Open Market Operations' refers to
Q5: The efforts to detect the existence of Higgs boson particle have become frequent news in the recent past. What is/are the importance/importances of discovering this particle?
1. It will enable us to understand as to why elementary particles have mass.
2. It will enable us in the near future to develop the technology of transferring matter from one point to another without traversing the physical space between them.
3. It will enable us to create better fuels for nuclear fission.
Select the correct answer using the codes given below.
The Higgs boson is primarily responsible for giving particles mass.