ANS:D - Carrot

Explanation: Carrot is the only vegetable which grows underground.

ANS:B - Router1(config-if)# ipv6 router rip 1

ANS:B - active decomposition

1. Degradation: When dissolved oxygen concentration falls to zero in a natural drainage, it indicates degradation. Degradation refers to the process by which organic matter in the water undergoes decomposition, often in the absence of oxygen. This anaerobic decomposition leads to the breakdown of organic material, but it also produces byproducts such as hydrogen sulfide, methane, and other foul-smelling compounds. Water in a degraded state may have unpleasant odors, murky appearance, and reduced biodiversity.
2. Active Decomposition: This term refers to the ongoing breakdown of organic matter within the natural drainage system. When dissolved oxygen levels are low or depleted, it indicates an environment where decomposition processes are actively taking place. Anaerobic microorganisms thrive in such conditions, breaking down organic matter through fermentation and other anaerobic processes.
3. Recovery: If dissolved oxygen levels fall to zero, it's unlikely that the water body is in a state of recovery. Recovery typically implies a return to a healthier state after a period of degradation or pollution. In this context, recovery would involve measures to improve dissolved oxygen levels and restore ecological balance within the drainage system, such as reducing pollutant inputs, enhancing oxygenation, and restoring natural habitats.
4. Cleaner Water: Zero dissolved oxygen levels are not indicative of cleaner water. On the contrary, they suggest poor water quality, likely due to pollution, organic matter overload, or other factors leading to oxygen depletion. Clean water typically has adequate dissolved oxygen levels to support aquatic life and maintain ecological balance.
5. None of these: While some of the options may partially apply, the most accurate description of the situation where dissolved oxygen falls to zero in a natural drainage would be degradation, as it reflects the deterioration of water quality and ecological health due to oxygen depletion and anaerobic conditions.

ANS:D - 400

It is a common base circuit .

ANS:B - one

The number of degrees of freedom for an azeotropic mixture in a two-component vapor-liquid equilibrium is zero. In a two-component system at equilibrium, the number of degrees of freedom is determined by the phase rule, which is given by: 𝐹=𝐶−𝑃+2F=C−P+2 Where:

• 𝐹F is the number of degrees of freedom,
• 𝐶C is the number of components (in this case, 2),
• 𝑃P is the number of phases.

ANS:D - Justice Dinesh Kumar

Justice Dinesh Kumar assumed the role of Presiding Officer of the Securities Appellate Tribunal (SAT) on April 29, 2024. He was appointed by the government of India for a four-year term, bringing his extensive legal experience, including serving as the chief justice of the Karnataka High Court, to the tribunal.

ANS:B - Badminton

Satwiksairaj Rankireddy, an Indian badminton player, won the Swiss Open Super 300 title in 2023, held in Basel, Switzerland, along with his partner Chirag Shetty.