Correct Answer: doing something risky

Solution : The correct answer is the second option.

Explanation: The idiom walking on thin ice is a figurative expression that conveys the idea of engaging in a risky or precarious situation where the outcome is uncertain and potentially dangerous. It is not a

Correct Answer: defined the scientific study of

Solution : The first option is correct.

The error is in the second part of the sentence. The word defined should not be followed by the scientific study of. Instead, it should be followed by as, making the correct phrase defined

Correct Answer: Atomic radius decreases across a period and increases down a group in the periodic table.

Solution : The correct option is Atomic radius decreases across a period and increases down a group in the periodic table.

This trend occurs because, across a period, increasing nuclear charge attracts electrons

Correct Answer: QRTY

Solution : Let's check the options –
First option: QRTY; Q + 1 = R; R + 2 = T; T + 5 = Y
Second option: BCEK; B + 1 = C; C + 2 = E; E + 6 = K
Third option: FGIO; F

Correct Answer: 3 : 4

Solution : Given, that the Ratio of areas of two isosceles triangles is 9 : 16.
Two isosceles triangles have equal vertical angles.
By angle sum property and equal base angles of the isosceles triangle, the given triangles have angles of the same measure.
So,

Correct Answer: increases

Solution : The correct answer is increases.

The partial pressure of a gas above the liquid or solution's surface determines how soluble the gas is in the liquid. The solution's temperature: as the temperature drops, gases become more soluble in liquids.

Correct Answer: 11.5 and 3.5

Solution : Speed of downstream $(a)$ = 15 km/hr
Speed of upstream $(b)$= 8km/hr
Speed of the boat in still water = $\frac{a + b}{2}$
= $\frac{15+8}{2}$
= 11.5 km/hr
Speed of the stream = $\frac{a-b}{2}$
= $\frac{15-8}{2}$
= 3.5 km/hr
Hence, the correct answer

Correct Answer: cerebellum equilibrium

Solution : The correct option is cerebellum equilibrium.

The cerebellum, which is situated near the base of the brain, is an essential part of the human brain because it controls balance and is responsible for motor movement. In humans, damage to this region impairs motor

Correct Answer: STATION

Solution : Given:
STCTRUIONMISCON

Let's compare all the option words with the word STCTRUIONMISCON –

First option: STRICT; All the letters of STRICT are present in the word STCTRUIONMISCON.
Second option: CONSTRUCTION; All the letters of CONSTRUCTION are present in the word STCTRUIONMISCON.
Third option: STATION; A 

Correct Answer: 30

Solution : Sum of first $n$ terms of an arithmetic progression = $\frac{n}{2}(2×\text{first term} +(n-1)× \text{common difference})$
Here, the first 29 even numbers form an AP of 29 terms with a common difference of 2 and the first term being 2.
So, the sum = $\frac{29}{2}(2×2 +(29-1)×