Explanation

The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium.

Explanation

To evaluate this logically:

(i) Passing the CSS examination gives happiness.

(ii) Happiness produces a smile.

From these, we can infer that passing the CSS examination results in happiness, and happiness leads to a smile. Thus, we can logically conclude that passing the CSS examination results in a smile (since happiness, which follows from passing CSS, leads to a smile).

Therefore, statement (iii) "Passing CSS examination gives smile" follows logically from (i) and (ii).

The correct answer is:

(a) True

Explanation

Total Cows= 10

Died Except 4 = 6

Left = 4

Explanation

"He accepted the car in lien of his claim for Rs. 4,55,000."

This phrase means "instead of."

So, he accepted the car instead of the money he was owed.

For: This preposition indicates the amount of the claim.

Explanation

Feral : Time:: ephemeral: immortal

Feral describes something wild or untamed, while Time is fleeting and transient.

Ephemeral refers to something short-lived, while immortal refers to something eternal, similar to feral and time's fleeting nature.

Explanation

A leaf of fern or palm is Frond

Explanation

The correct answer is: I have spoken to him already.

In this sentence, "already" is an adverb of time that specifies

Explanation

To solve the series $(-3) times (-3) times (-3)$, let's break it down:

1. First multiplication:

   $$(-3)\times (-3)=9$$

   (Multiplying two negative numbers gives a positive result.)

2. Next, multiply the result by $-3$:

   $$9\times (-3)=-27$$

Explanation

The square root of -25 is 5i, where i is the imaginary unit (√-1). 

Since the square root of a negative number is not a real number, we use imaginary numbers to express it.  

So, √(-25) = 5i.

Explanation

In this sentence, "so" is an adverb that modifies the adjective "loud."

It indicates the degree or intensity of the action.