Explanation

On February 20, 1947, Attlee announced that British rule in India would end no later than June 1948.

This declaration set the timeline for India's independence.

Explanation

Valency is the number of electrons an atom can gain, lose, or share to achieve a stable configuration.

Carbon (C) has an atomic number of 6, with an electron configuration of 2,4.

It needs 4 more electrons to complete its outer shell (octet rule), so its valency is 4.

Explanation

Mali and Haiti are classified as underdeveloped countries due to their low economic growth, poor infrastructure, and high poverty rates.

They struggle with political instability, weak healthcare systems, and limited industrialization.

Explanation

The sentence follows the active voice structure, where the subject (All my certificates) performs the action (are attached).

In passive voice, it would be restructured as: All my certificates have been attached herewith.

Explanation

The sentence requires a reflexive pronoun (e.g., myself, herself, itself) to show that the subject ("She") is the object of her own anger.

"Herself" is the correct reflexive pronoun matching the subject "She."

Explanation

The train had already left the station.

The sentence follows correct subject-verb-object order: "The train" (subject) + "had already left" (verb) + "the station" (object).

It uses past perfect tense properly to show that the action (train leaving) was completed in the past.

Explanation

About 40-50% of the body's weight is due to muscles.

Muscles are the largest component in terms of body mass after bones.

The remaining body weight is distributed between bones, skin, organs, and other tissues.

Explanation

"The number of" is a singular subject, so it takes a singular verb.

"Is" is the correct verb because it agrees with the singular subject "The number".

Explanation

To compare fractions, convert them to decimal values:

7/9 = 0.777

5/6 = 0.833

8/9 = 0.888

8/7 = 1.142

The smallest value among them is 7/9.

Explanation

Rhombic sulphur and monoclinic sulphur coexist at 95.5°C, known as the transition temperature.

Below 95.5°C, rhombic sulphur is stable, while above it, monoclinic sulphur is more stable.