Correct Answer: Iodine

Solution : The correct option is Iodine.

Iodine is abundant in sea weeds, commonly known as marine macroalgae. They absorb and concentrate iodine from saltwater, giving them a natural iodine store. Iodine is accumulated by sea weeds in iodine-rich marine habitats via metabolic activities. Iodine may be

Correct Answer: $9\frac{1}{11}$%

Solution : Let the volume of water be 100.
After freezing, it increases by 10% = 110
After melting, it decreases by = $\frac{10}{110}×100$ = $9\frac{1}{11}$%
Hence, the correct answer is $9\frac{1}{11}$%.

Correct Answer: 4

Solution : Let $x$ be the quotient when n is divided by 7.
$n = 7x+2$
When $9n$ is divided by $7$,
$\frac{9n}{7} =\frac{9(7x+2)}{7} = \frac{63x+18}{7} = (9x+2)+\frac{4}{7}$
So, the remainder when $9n$ is divided by $7$ is $4$.
Hence, the correct answer is 4.

Correct Answer:

Solution : As per mirror image properties, closer things appear closer to the mirror in reflection.
Here, according to the information provided, the mirror is placed at the bottom of the figure (on line AB). So, the top of the reflected image will appear as the bottom, and

Correct Answer: national park

Solution : The correct option is the national park.

A national park is a piece of land that has been declared and preserved by the government in order to preserve the natural environment and animals. National parks are created to protect unique ecosystems, different plant

Correct Answer: Lord Lytton

Solution : The correct option is Lord Lytton.

The Vernacular Press Act was enacted during the regime of Lord Lytton, who served as the Viceroy of India from 1876 to 1880. The act was passed in 1878. It was eventually repealed in 1882 by the

Correct Answer: 43

Solution : Given:
23 : 29 :: 41 : ?

Prime numbers between 20 and 45 – 23, 29, 31, 37, 41, 43
Like, 23 : 29→Consecutive prime number after 23 is 29.
Similarly, follow the same pattern for 41 : ?→Consecutive prime number after 41 is

Correct Answer: $\operatorname{cosec} P+\cot P$

Solution : Given: $\sqrt{\frac{1+\cos P}{1-\cos P}}$
Multiply the numerator and denominator by $1+\cos P$
$=\sqrt{\frac{(1+\cos P)^2}{(1-\cos P)(1+\cos P)}}$
$=\sqrt{\frac{(1+\cos P)^2}{(1-\cos^2 P)}}$
$=\sqrt{\frac{(1+\cos P)^2}{(\sin^2 P)}}$
$=\frac{(1+\cos P)}{(\sin P)}$
$=\operatorname{cosec}P + \cot P$
Hence, the correct answer is $\operatorname{cosec}P + \cot P$.

Correct Answer: catalyst

Solution : The second option is the correct answer.

The term "catalyst" is a general term for a substance that facilitates a chemical reaction without undergoing a permanent change, making it the most appropriate choice in this context.

The meanings of the other options are as follows:

Correct Answer: Dismantle

Solution : The correct choice is the third option.

Explanation:

The verb amalgamate means to combine or merge different elements into a single, unified whole., whereas dismantle means to take apart or disassemble something, breaking it down into its separate components.

The meanings of the other options