Correct Answer: They are firing the canons continuously.

Solution : The second option is correct.

Active voice is the voice where the subject performs the action. When transforming a sentence from the passive voice to the active voice, the subject (they in this case) performs the action.

The structure

Correct Answer: Thermal power

Solution : The correct answer is Thermal power.

Thermal power is the largest energy producer in India and accounts for nearly 80% of the country's energy production. Thermal power refers to the generation of electricity through the use of heat by burning fossil fuels like coal,

Correct Answer: Statutory body

Solution : The correct answer is a Statutory body.

The Damodar Valley Corporation Act of 1948 provided for the establishment and regulation of a corporation for the development of the Damodar Valley in the provinces of Bihar and West Bengal. It is independent India's first

Correct Answer: at our colony

Solution : The correct choice is the fourth option.

The given sentence is grammatically incorrect. Here, "in our colony" should be used instead of "at our colony". The preposition "in" is used to refer to a place inside or to a position inside a particular

Correct Answer: CDAB

Solution : The correct choice is the third option.

Explanation: 

Sentence C provides a chronological point by establishing the timeline, indicating when the last mammoths existed. Sentence D introduces the location where the well-preserved bodies of the last mammoths are discovered, giving context to their preservation. Sentence

Correct Answer: straight

Solution : To decode the given word ZBYXMNQB using the provided code and key, let's match each letter in the coded word to its corresponding letter in the key:

•  Z corresponds to s
•  B corresponds to t
•  Y corresponds to r
•  X corresponds to a
•  M corresponds

Correct Answer: $\frac{9}{4}$

Solution : Given
$a^{2}+b^{2}+c^{2}=ab+bc+ca$
$⇒2a^{2}+2b^{2}+2c^{2}=2ab+2bc+2ca$
$⇒(a^{2}+b^{2}-2ab)+(b^2+c^{2}-2bc)+(a^2+c^2-2ac)=0$
$⇒(a-b)^{2}+(b-c)^{2}+(c-a)^{2}=0$
$⇒a=b=c$
Which means the triangle is equilateral. So, all angles are of 60º each
Therefore, $\sin^{2}A+\sin^{2}B+\sin^{2}C=\sin^{2}60º+\sin^{2}60º+\sin^{2}60º = \frac{3}{4}+ \frac{3}{4}+ \frac{3}{4}= \frac{9}{4}$
Hence, the correct answer is $\frac{9}{4}$.

Correct Answer: $1$

Solution : Given, $\sec 3 \theta=\operatorname{cosec}\left (4 \theta-15°\right)$
We know $ \operatorname{cosec}\theta = \sec(90°-\theta)$
⇒ $\sec3\theta = \sec (90°-(4\theta - 15°))$
⇒ $3\theta = 90°-4\theta + 15°$
⇒ $7\theta = 105°$
⇒ $\theta = 15°$
$\therefore$ $\tan 3 \theta=\tan (3\times15)=\tan 45° = 1$
Hence, the correct answer

Correct Answer: (4)

Solution : The correct choice is the fourth option.

The verb lies means to tell an untruth or a false statement. The past tense is lied, which fits the sentence appropriately. Lay means to put something down, and laid is the past tense of lay. 

Correct Answer: Lactometer - Specific gravity of liquids

Solution : The correct option is the Lactometer - specific gravity of liquids.

A hydrometer or lactometer is a device that uses the concept of buoyancy to measure the density or relative density of liquids. Typically, they are graduated and calibrated