Search Previous Year Questions

The correct answer is Earthworm.

Key Points

• The nephridium is an excretory organ present in earthworms.
• Nephridia are tubular excretory structures that perform a function similar to kidneys in vertebrates.
• They help in removing metabolic wastes from the body fluids.
• Nephridia are found in many invertebrates, including annelids like earthworms.
• There are different types of nephridia, such as protonephridia and metanephridia, based on their structure and function.

Additional Information

• Planaria have a different excretory system based on flame cells.
• Rats have kidneys as their excretory organs.
• Cockroaches use Malpighian tubules for excretion.

The correct answer is Hoon.

Key Points

• Attila was the leader of the Huns, also known as the Hoon community.
• The Huns were a nomadic tribe known for their invasions and conquests in Europe during the 4^th and 5^th centuries.
• Attila ruled the Huns from 434 until his death in 453, and he was one of the most feared enemies of the Western and Eastern Roman Empires.
• Under Attila's leadership, the Huns became one of the most powerful and formidable groups during that era.

Additional Information

• The Huns originated from Central Asia and migrated into Europe, causing significant upheaval in the regions they invaded.
• Attila's campaigns extended from the Ural River to the Rhine River and from the Danube River to the Baltic Sea.
• Despite his fearsome reputation, Attila's death in 453 led to the rapid decline of the Hun Empire.

The logic followed here is:

Logic: Iron, Zinc, and Chlorine are all individual elements. Whereas Mica is not an element, but a mineral composed of different elements, making it structurally different from the others.

Hence, the correct answer is "Mica".

The correct answer is 14.

Key Points

• The Rajya Sabha must return the Money Bill to the Lok Sabha within 14 days from the date of its receipt.
• If the Rajya Sabha fails to return the Money Bill within this period, it is deemed to have been passed by both Houses in the form originally passed by the Lok Sabha.

Additional Information

• A Money Bill is defined under Article 110 of the Indian Constitution.
• The Lok Sabha has more power over Money Bills compared to the Rajya Sabha.
• Only the Lok Sabha can introduce and pass Money Bills, while the Rajya Sabha can only make recommendations.

According to the given information,

1) If A is placed below E.

2) D is placed above E.

3) C is placed above D.

4. B is placed below A

Here, we can see that B touches the table.

Hence, the correct answer is "B".

The correct answer is Waterflow.

Key Points

• Rill erosion is an example of erosion caused by waterflow.
• Waterflow erosion occurs when running water removes the soil surface, creating small channels or rills.
• These rills can merge to form larger channels, further contributing to soil erosion.
• Water is a powerful agent of erosion, shaping landscapes by transporting soil and sediment over time.

Additional Information

• Other types of erosion include:
• Wind erosion: Caused by the movement of air, which can remove topsoil and transport it to different locations.
• Glacial erosion: Caused by the movement of glaciers, which can carve out valleys and shape mountains.
• Thermal erosion: Caused by temperature changes, which can expand and contract rocks, leading to their breakdown.
• Prevention of soil erosion includes practices like planting vegetation, using erosion control mats, and building terraces.

The correct answer is Treaty of Purandar.

Key Points

• The Treaty of Purandar was signed between Shivaji Maharaj and the Mughal Empire in 1665.
• This treaty was a result of the Mughal Emperor Aurangzeb's campaign against Shivaji.
• Under the terms of the treaty, Shivaji agreed to surrender 23 out of 35 forts to the Mughals and pay a compensation of 400,000 rupees.
• This treaty marked a temporary setback for Shivaji but he soon regained his strength and continued his resistance against the Mughals.

Additional Information

• Shivaji Maharaj was a Maratha warrior king and the founder of the Maratha Empire in western India.
• He is known for his innovative military tactics, pioneering non-conventional methods of warfare, and administrative reforms.
• The Mughal Empire was one of the largest empires in Indian history, known for its rich cultural heritage and architectural achievements.
• It was founded by Babur in 1526 and reached its zenith under Akbar, Jahangir, Shah Jahan, and Aurangzeb.
• The empire began to decline after Aurangzeb's death in 1707.

According to the given information,

BOARD: 53169

NEAR: 2416

Using the given codes for the letters,

NODE: ?

Hence, the correct answer is "2394".

The correct answer is Copper & Zinc.

Key Points

• Brass is an alloy of copper and zinc.
• The proportions of zinc and copper can vary to create a range of brasses with varying properties.
• Brass is typically used for decoration due to its bright gold-like appearance.
• Brass is also used for applications where low friction is required such as locks, gears, bearings, doorknobs, ammunition casings, and valves.
• It is known for its acoustic properties, making it an ideal material for musical instruments such as horns and bells.

Additional Information

• Brass has higher malleability than bronze or zinc.
• It is a good conductor of heat and is often used in heat exchangers.
• The melting point of brass varies depending on the composition, typically ranging from 900 to 940 °C (1,650 to 1,720 °F).

According to the given information,

Hence, the correct answer is "2".