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Daily-mcqs 13 Sep 2025
Q1:
Why is childhood obesity rising faster in low- and middle-income countries compared to high-income countries?
A: Aggressive marketing of junk foods on digital platforms
B: Easy access to cheap ultra-processed foods compared to healthy options
C: Weak regulations and policy enforcement around food environments
D: All of the above
Answer: D
Explanation:
The surge in childhood obesity in low- and middle-income nations is driven by a combination of factors—digital marketing targeting children, widespread availability of cheap processed foods, and weak enforcement of food safety and marketing regulations. This makes “All of the above” the best explanation as it captures the structural, policy, and commercial determinants highlighted in the UNICEF report.
Q2:
Consider the following statements about stablecoins: 1. Stablecoins are cryptocurrencies usually pegged to fiat currencies like the U.S. dollar to minimize volatility. 2. More than 99% of all stablecoins in circulation are backed by the U.S. dollar. 3. Stablecoin issuers like Tether and Circle hold U.S. Treasury bills, indirectly boosting demand for U.S. debt. 4. Stablecoins are primarily used within the U.S. financial system. How many of the above statements are correct?
A: Only 1
B: Only 2
C: Only 3
D: All four
Answer: C
Explanation:
Statements 1, 2, and 3 are correct. Stablecoins are pegged to fiat, overwhelmingly backed by the U.S. dollar (99%), and issuers invest in U.S. Treasuries, reinforcing dollar strength. Statement 4 is incorrect: despite being dollar-backed, stablecoins are used largely outside the U.S., serving as a global digital dollar rather than a domestic tool.
Q3:
With reference to Decentralized Finance (DeFi), which one of the following best describes it?
A: A government-backed digital payment system
B: A financial system built on blockchain technology without intermediaries
C: A new version of international banking regulations
D: A centralized platform for cryptocurrency trading
Answer: B
Explanation:
DeFi is a financial ecosystem that uses blockchain technology and smart contracts to provide services like lending, borrowing, and trading without banks or traditional intermediaries. Unlike centralized finance, DeFi relies on open-source protocols and peer-to-peer interactions, making it more transparent and accessible but also riskier in terms of regulation and security.
Q4:
With reference to the provisional patent filed for the red ivy wound pad, consider the following statements: 1. In India, patents are granted by the Indian Patent Office under the DPIIT, Ministry of Commerce & Industry. 2. A provisional patent secures a priority date but is valid only for 12 months unless a complete specification is filed. 3. Patents in India are granted for 10 years. Which of the above statements are correct?
A: 1 and 2 only
B: 2 and 3 only
C: Only 1 and 3
D: 1, 2 and 3
Answer: A
Explanation:
Statements 1 and 2 are correct. Patents are filed under the Indian Patent Office (Controller General of Patents, Designs & Trade Marks). A provisional patent holds a priority date for 12 months. Statement 3 is incorrect since Indian patents are valid for 20 years.
Q5:
Consider the following statements about Strobilanthes species in India: 1. They are known for periodic mass flowering events, such as Neelakurinji in the Western Ghats. 2. They are exclusively found in temperate Himalayan regions. 3. They belong to the family Acanthaceae. Which of the above statements are correct?
A: 1 and 2 only
B: 1 and 3 only
C: 2 and 3 only
D: 1, 2 and 3
Answer: B
Explanation:
Statements 1 and 3 are correct. Strobilanthes species like Neelakurinji bloom every 12 years in the Western Ghats. Statement 2 is incorrect because they grow in tropical as well as montane ecosystems, not exclusively in the Himalayas.
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