Explanation

A chemical property describes a substance’s ability to undergo a change that alters its chemical identity.

Examples include flammability, reactivity with acids, or ability to rust.

Explanation

To factorize 4x² + 7x + 3:

Let's find two numbers that multiply to 4*3 = 12 and add to 7:

The numbers are 4 and 3 (since 4 + 3 = 7 and 4 * 3 = 12).

Now, rewrite the middle term:

4x² + 4x + 3x + 3

Factor by grouping:

4x(x + 1) + 3(x + 1)

(4x + 3)(x + 1)

The correct answer is (x + 1)(4x + 3).

Explanation

"Junior" is an adjective that describes someone as being younger or of lower status.

When using "junior" in a comparison, you use "to" instead of "than".

"By" is used to indicate the age difference (e.g., by four years). 

Explanation

The sentence has one independent clause: "Neither Salma nor Aisha ate dinner after a long day at work."

There are no dependent clauses or coordinating conjunctions linking multiple independent clauses, so it is a simple sentence despite having a compound subject.

Explanation

Every real number is either a rational or irrational number: True. A real number can either be expressed as a fraction (rational) or cannot (irrational).

Every whole number is a natural number: False. Whole numbers include 0, but natural numbers start from 1. Therefore, 0 is a whole number but not a natural number.

All natural numbers are integers: True. Natural numbers are a subset of integers.

All integers are rational numbers: True. Every integer can be written as a fraction (e.g., 

5 = 5/1), so all integers are rational.

Explanation

She told me that she was reading about politics those days.

Present continuous (am reading) changes to past continuous (was reading).

"These days" changes to "those days" in indirect speech.

Explanation

Explanation

Explanation

The sentence evokes a vivid mental image of a stream flowing, appealing to the senses.

It creates a sensory experience for the reader, which is the essence of imagery.

Explanation

حج ایک اسلامی فریضہ ہے اور اردو میں اسے مذکر مانا جاتا ہے۔

باقی تمام الفاظ (چادر، لڑائی، رات، بارش) مؤنث ہیں۔