Explanation

"Bigger" is the comparative form of "big," used to compare two things.

The sentence compares two houses, so the comparative degree is appropriate.

Big: Positive Degree

Bigger: Comparative degree

Biggest: Superlative degree

Explanation

Alliteration is the repetition of the first consonant sound in a series of words or a line of poetry.

Example: "Peter Piper picked a peck of pickled peppers."

Explanation

An Independent Clause can stand alone as a sentence because it contains a subject and a predicate, expressing a complete thought.

Dependent Clauses cannot stand alone and require an independent clause to form a complete sentence.

Explanation

Direct Speech repeats or quotes the exact words spoken by someone, often enclosed in quotation marks.

Example: She said, "I am going to the market."

Explanation

May, should, could, shall, might and can are modal verbs used to express possibility, necessity, ability, or permission.

Modal verbs do not show tense but are used with the base form of the main verb.

Explanation

First Conditional is used for real and possible situations in the future.

Structure: If + present simple, will + base verb

→ "If you study hard, you will pass the test."

Explanation

HNO₃ is the chemical formula for Nitric acid, a strong mineral acid commonly used in fertilizers and explosives.

It contains one hydrogen, one nitrogen, and three oxygen atoms.

Explanation

“Do it at once.” is an imperative sentence in active voice.

To change it into passive voice, we use the structure “Let + object + be + past participle.”

The object “it” becomes the subject, and “do” changes to “done.”

The passive form is: “Let it be done at once.”

For order:

Active Voice Formula: V + object.

Passive Voice Formula: Let + subject + be + V

Explanation

According to the law of conservation of energy, the total energy in the universe remains constant.

Energy can change forms (e.g., from kinetic to potential), but the total amount doesn't decrease or increase.

Explanation

She ordered his maid servant to bring him a glass of milk.

It's an imperative sentence (a command), so "said to" changes to "ordered", and the verb is changed to the infinitive form (to bring).

Personal pronouns are also adjusted: me → him (according to reported speech rules).