Correct Answer: rain gauge

Solution : The correct option is a rain gauge.

A rain gauge is a meteorological device that records and quantifies the total amount of precipitation, or rainfall, over a given time frame. While rain gauges come in a variety of forms, they are all used

Correct Answer: She didn’t knew

Solution : The error lies in the fourth option.

Explanation:
The verb didn't is a contraction of did not, and after modal verbs or auxiliaries, we use the base form of the verb. In this case, know is the base form, so the correct construction

Correct Answer: INR 12000

Solution : Amount = INR 12960
Term, $n$ = 2 years
Rate, $R$ = 4%
Let $P$ be the principal sum.
Simple interest = $12960 - P$
We know, Simple interest = $\frac{\text{Principal × Time × Rate}}{100}$
$⇒12960-P = \frac{P×2×4}{100}$
$⇒12960 = P + \frac{8P}{100}$
$\therefore

Correct Answer: 96

Solution : The mean proportion of two numbers, $a$ and $b$ is $\sqrt{ab}$.
The mean proportion of 64 and 144 $=\sqrt{64 \times 144} = 96$
Hence, the correct answer is 96.

Correct Answer: 75

Solution : $\frac{15×32÷2×5}{X} = 16$ 
⇒ $\frac{15×16×5}{X} = 16$
⇒ $\frac{15×16×5}{16} = X$
⇒ $75 = X$
Hence, the correct answer is 75.

Correct Answer: 2.1 cm

Solution : Given:
Circumference of the circle = 13.2 cm
Let the radius be $r$.
We know the circumference of the circle = $2\pi r$
⇒ $13.2 = 2\pi r$
⇒ $13.2=2× \frac{22}{7}×r$
⇒ $r = \frac{13.2\times 7}{2\times 22}$
⇒ $r = 2.1$ cm
Hence, the

Correct Answer: Ishwar Chandra Vidyasagar

Solution : The correct option is Ishwar Chandra Vidyasagar

Ishwar Chandra Vidyasagar, a prominent social reformer in 19th-century India, advocated for widows' rights. He used ancient Hindu texts to argue against prevailing customs and supported the remarriage of widows. His efforts led to legal reforms,

Correct Answer: The 42nd Amendment

Solution : The correct option is The 42nd Amendment

The Preamble of the Indian Constitution was amended in 1976 to include the terms socialist, secular and integrity by the 42nd Constitutional Amendment. The Preamble offers a glimpse of the ideals cherished by the framers of

Correct Answer: Accolade

Solution : The correct choice is the fourth option.

Accolade is an award or recognition handed to someone for their achievement, and it is the correct one-word substitute for any award, honour, or laudatory notice.

The meanings of the other options are as follows:

• Complement 

Correct Answer: Alice turned away and shrugged her shoulders.

Solution : The first option is correct.

• In the first option, there are no incorrect spellings.
• In the second option, the incorrect spelling is "shruged". Its correct spelling is shrugged.
• In the third option, the incorrect spelling is "shulders". Its