Correct Answer: crop

Solution : The second option is the correct answer.

Crop up is the correct phrasal verb in this context because it conveys that something might suddenly or unexpectedly appear or emerge.

The meanings of the other options are as follows:

• Fill up doesn't fit the context as it suggests something gradually becoming full, which doesn't convey the sudden or unexpected nature of the appearance of a new flu strain.
• Bring up doesn't convey the idea of something emerging on its own; it implies an intentional action, which is not the intended meaning of this sentence.
• Chop up is also inappropriate because it suggests cutting something into pieces. 

So, the complete sentence is: As global temperatures rise, an untreatable new strain of the flu might crop up at any moment.

Correct Answer: 30 cm

Solution :
Given:
OY = 50 cm and XY = 40 cm
Use the Pythagorean theorem to find the length of OX, which is the radius of the circle [in $\triangle OXY$]
OY² = OX² + XY²
⇒ OX² = OY² – XY²
⇒ OX² = (50)² – (40)²
⇒ OX² = 2500 – 1600 = 900
⇒ OX = $\sqrt{900}$ = 30 cm
Hence, the correct answer is 30 cm.

Correct Answer: No sooner did she shout

Solution : The fourth option is the correct answer.

The base form of the verb, that is, shout in this case, is used after did​​​​​​.

Therefore, the correct sentence is: No sooner did she shout than the thieves ran away, leaving all the jewellery on the table.

Correct Answer: Appeal to the highest possible authority

Solution : The first option is correct.

Appeal to Caesar is sometimes used to describe an action where someone seeks a higher authority or takes a matter to a higher level of decision-making, especially when facing a seemingly unfair or biased judgement. It suggests a willingness to escalate a situation to a higher authority for a fair and impartial resolution.

Therefore, the correct answer will be: Appeal to the highest possible authority.

Correct Answer: Tibet plateau

Solution : The correct option is the Tibet plateau.

The Tibetan Plateau, often referred to as the "Roof of the World," is the highest plateau in the world. It is located in Central Asia. Tibet Plateau region, with an average elevation exceeding 4,500 meters (14,800 feet) above sea level. The Tibetan Plateau is known for its vast high-altitude landscapes and is surrounded by some of the world's highest mountain ranges, including the Himalayas to the south.

Correct Answer: B, D, C, A

Solution : The correct choice is the third option: BDCA

The paragraph starts with part B, which gives the introduction that the novel is patterned as a post-impressionist painting, which is followed by part D. It is further continued in part C which mentions that the reader can trace Clarrisa's and Septimus's movements and the sentence finally ends with part A. 

Correct Answer: $720^{\circ}$

Solution :
$\angle$ABC + $\angle$BCA + $\angle$BAC = $180^{\circ}$ ---------------(i)
⇒ $\angle$ACB + $\angle$ACD = $180^{\circ}$ ---------------(ii)
⇒ $\angle$ABC + $\angle$ABF = $180^{\circ}$ ---------------(iii)
⇒ $\angle$BAC + $\angle$EAC = $180^{\circ}$ ---------------(iv)
Adding (ii), (iii), and (iv), then subtracting (i) from it,
$\therefore$ $\angle$ACD + $\angle$ABF + $\angle$EAC = $540^{\circ}$ – $180^{\circ}$ = $360^{\circ}$
So, the sum of the exterior angles formed on both sides = $2 × 360^{\circ}$ = $720^{\circ}$
Hence, the correct answer is $720^{\circ}$.

Correct Answer: Hotels and restaurants

Solution : The correct answer is Hotels and restaurants.

The tertiary sector, also known as the service sector, encompasses a wide range of service-based industries that provide services to individuals and businesses.

This includes businesses like hotels, restaurants, retail, healthcare, education, entertainment, and various professional services. Mining and quarrying, water supply, and electricity generation are typically part of the primary and secondary sectors of the economy, not the tertiary sector.

Correct Answer: West

Solution : As per the given information, the movement of Gurpreet will look as follows –

Now, Gurpreet is facing the West direction. Hence, the third option is correct.

Correct Answer: happening

Solution : The correct choice is the fourth option.

The blank can be filled with the gerund form of the verb "happen", that is, "happening", as it accurately describes that the action is about to happen. This helps in conveying the intended meaning of the sentence: that, as the vision was blurred, there was a sense that a terrible event was about to take place.

Therefore, the complete sentence is: A haze of panic blurred my vision; something terrible was close to happening.