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Haematology is the study of blood.

Similarly,

Phycology is the study of algae.

Hence the correct answer is Option 2: Algae

The logic followed here is:

14 + 12 + 3 + 7 = 36 (number at the centre)

Similarly,

9 + 11 + x + 16 = 54(number at the centre)

36 + x = 54

x = 54 - 36

x = 18

 

Hence the correct answer is Option 3: 18

The correct answer is Cuba.

Key Points

• The dance form 'Salsa' originated in Cuba.
• Salsa came into being in the mid-20^th century in Cuba, a melting pot of Latin and Afro-Caribbean cultures.
• It has roots in various dance styles including Son, Rumba, and Afro-Cuban dance.
• Salsa music is greatly influenced by the Afro-Cuban Son, and over time, with influences from Puerto Rico and New York, it evolved into a distinct genre known today as Salsa.
• The Salsa dance and music culture expanded and evolved over the decades in the Hispanic districts of New York City, further spreading to other areas in the Americas, and also across the globe. However, its origins are most directly traced back to Cuba.

The correct answer is Ajatasatru.

Key Points

• Ajatashatru, the ruler of Magadha, was sitting on the throne after killing his father. That is why in history it is known as Kunik (Pitruhanta).
• He embraced Buddhism.
• He convented the first Buddhist council at Rajagriha in 483 BC.
• He won wars agaist Kosala and Vaishali.

Additional Information

• Haryanaka dynasty was the first important and powerful dynasty of Ancient Magadha.
• It was founded by Bimbisara in 544 BC.
• Its capital was Girivraja or Rajgir
• Bimbisara was the first king to have a standing army.
• it ended with the last king NagaDasaka in 413 BC.
• Kings of the Haryanka dynasty

1. Bimbisara (559-491 BC)
2. Ajatasatru (492-460 BC)
3. Udayabhadra/Udayin ( 460-444 BC)
4. Aniruddha
5. Manda
6. Nagadasaka

The given word: CUMBERSOME 

Option 1: SOBER → CUMBERSOME (can be formed)

Option 2: ROME → CUMBERSOME (can be formed)

Option 3: MOUSE  → CUMBERSOME (can be formed)

Option 4: MERCY → CUMBERSOME ( cannot be formed as Y is not present)

Hence MERCY cannot be formed by using the letters of the given word.

Hence the correct answer is Option 4: MERCY

The correct answer is Yangtze Kiang.

Key Points

Yangtze Kiang​ river:

• Yang-ti-si is the longest river in Asia which flows in China.
• It is also the 3^rd longest in the World.
• Its length is 6300 km.
• Also, it is the longest river that flows in a single country.

Additional Information

• The other Rivers of Asia are as follows:

Given:

 

Time taken by A alone to complete the work: 12 days

 

Time taken by A and B together to complete the same work: 8 days

 

Concept:

 

If a task is being done in collaboration, then the combined rate of work is the sum of the individual rates.

 

Solution:

 

Let's assume that the total work to be done is 1 unit. Then, the rate at which A completes the work is:

 

⇒ Rate of A = Total work / Time taken by A = 1 / 12 = 0.0833 units/day

 

The combined rate at which A and B together complete the work is:

 

⇒ Combined rate of A and B = Total work / Time taken by both A and B = 1 / 8 = 0.125 units/day

 

Thus, the rate at which B completes the work (Rate of B) is the difference between the combined rate and A's rate:

 

⇒ Rate of B = Combined rate of A and B - Rate of A = 0.125 - 0.0833 = 0.0417 units/day

 

Finally, the time taken by B to complete the work alone is the total work divided by B's rate:

 

⇒ Time taken by B = Total work / Rate of B = 1 / 0.0417 = 24 days

 

Therefore, B alone can complete the work in 24 days.

The correct answer is Volt.

Key Points 

• Electromotive force is the electric potential generated by either an electrochemical cell or a changing magnetic field; It is also known as voltage.
• It is an electrical action produced by a non-electrical source, such as a battery (converts chemical energy to electrical energy) or generator (converts mechanical energy into electrical energy).
• Electromotive force is commonly denoted by the acronym emf, EMF or E.
• The SI unit for electromotive force is the volt.
• Electromotive force in a circuit maintains the potential difference.

Explanation:

• Electromotive Force (EMF) is the force which causes to flow the free electrons in any closed circuit due to difference in electrical pressure or potential. Its unit is Volt.
• Newton is the unit of force specifically mechanical forces.
• Columb is the unit of charge.
• Joule is the unit of energy.

So, the correct unit of electromotive force is Volt.

As per the given information,

Since the final final point is 2km to the west of her starting point, we can say that:

AD = BC = 2km

It is given that CD = 4km

Therefore AB = 4km 

Thus she rode 4km northwards initially.

Hence the correct answer is Option 1: 4km

The correct answer is Auxin.

Key Points

• Tropic movement in plants is controlled by the hormone Auxin.
• Auxins are a type of plant hormone that play a crucial role in coordinating many growth and behavioral processes in the plant's life cycle, including tropic movement.
• They are involved in cell elongation, apical dominance, tissue differentiation, and response to light and gravity.
• When a plant is exposed to light, auxins synthesized at the shoot tips help cells on the shaded side grow longer, causing the plant to bend towards the light, a phenomenon known as phototropism.

Additional Information

• Heteroauxin:
• This is another name for indole-3-acetic acid (IAA), which is the most common naturally occurring plant hormone of the Auxin class.
• It's involved in various aspects of plant growth and development, including tropic responses to light and gravity.
• Gibberellin:
• Gibberellins are a group of plant hormones that regulate growth and influence various developmental processes, including stem elongation, germination, dormancy, flowering, sex expression, enzyme induction, and leaf and fruit senescence. However, they do not primarily control tropic movement in plants.
• Cytokinin:
• Cytokinins are a class of plant growth substances (phytohormones) that promote cell division, or cytokinesis, in plant roots and shoots.
• They are involved primarily in cell growth and differentiation, but not specifically in the tropic responses of plants.