Explanation

Here speed means رفتار

Here decline means کم ہونا

As people age, their ability to learn new things slows down, meaning the speed of learning declines.

However, quality and quantity of knowledge can still improve with experience.

Explanation

In passive voice, the object (my work) becomes the subject, and the verb changes accordingly:

Active voice: I shall do my work myself.

Passive voice: My work shall be done by me.

Rule for future simple tense: Shall/will + be + past participle (done) is used to form the passive structure.

Explanation

Pakistan is the fifth-largest producer of cotton globally, following China, India, Brazil, and the United States. 

In the 2024/2025 period, Pakistan's cotton production is projected at 5 million 480-pound bales, accounting for approximately 4% of global production. 

Explanation

A wind vane, also called a weather vane.

It is an instrument used to determine the direction of the wind.

It typically has an arrow that points into the direction from which the wind is blowing.

Explanation

Mesosomes are infoldings of the bacterial plasma membrane that help in cellular respiration, DNA replication, and cell division.

Since bacteria lack mitochondria, mesosomes function similarly to mitochondria by aiding in ATP (energy) production.

Explanation

The maximum number of electrons in any shell is determined by the formula 2n², where n is the principal quantum number.

This formula comes from quantum mechanics and defines the electron capacity of energy levels in an atom.

Explanation

The speed of sound is higher in solids (like glass and iron) than in liquids (like water) and gases (like dry air).

However, the speed of sound in glass is less than in iron because iron is denser and has a higher elasticity.

Explanation

The phrase "rewarded him for a shield" is incorrect.

The correct phrase should be "rewarded him with a shield" instead of "for a shield."

Explanation

Neon (Ne) is a noble gas.

It is exists as a monoatomic (single-atom) molecule under normal conditions.

Explanation

The phrase "But for my life" is an idiomatic expression meaning "no matter how hard I try."

In the given sentence, it implies that the speaker was unable to drink the milk despite trying.