Explanation

Pakistan's exports are generally less than its imports, resulting in a trade deficit.

This means the country imports more than it exports.

Explanation

"A Bone of Contention" refers to a subject or issue over which people disagree or argue, leading to conflict or quarrel.

A Bone of Contention means تنازعہ کی ہڈی

Cause of Quarrel means جھگڑے کی وجہ

Explanation

ROM is a type of non-volatile memory that stores the basic input/output system (BIOS) and other firmware that controls the computer's hardware components. When a computer is powered on, the BIOS stored in ROM is executed to:

• 1. Initialize hardware components
• 2. Detect and configure peripherals
• 3. Load the operating system from storage devices

Explanation

Let's calculate the new length and width of the picture:

Original length (L) = 9 cm

Original width (W) = 5.5 cm

Enlargement ratio = 7:5

New length (L') = (7/5) × L = (7/5) × 9 = 12.6 cm

New width (W') = (7/5) × W = (7/5) × 5.5 = 7.7 cm

So, the new length and width of the picture are:

7.7 cm by 12.6 cm

Explanation

The correct sentence is "She invited me and my sister."

It uses the correct past tense "invited" and the correct pronoun "me" in the object position.

Explanation

Modification of stationary barchans, which are crescent-shaped sand dunes.

It often leads to the formation of linear dunes, known simply as "dunes."

These dunes are typically longer and straighter than the original barchan shape.

Explanation

(X/100) × (25/2) = 150

To get rid of the fraction, multiply both sides by 2:

(X/100) × 25 = 300

Now, divide both sides by 25:

X/100 = 300/25

X/100 = 12

Multiply both sides by 100 to solve for X:

X = 1200

Explanation

Hydrogen is the lightest element, and its most common isotope (protium) has no neutrons in its atomic nucleus.

The atomic number of hydrogen is 1, which means it has one proton in its nucleus, but no neutrons.

The three main isotopes of hydrogen:

• Protium (1H): 1 proton, 0 neutrons
• Deuterium (2H or D): 1 proton, 1 neutron
• Tritium (3H or T): 1 proton, 2 neutrons

Explanation

Saturated hydrocarbons are called alkanes.

Alkanes are a type of hydrocarbon that have only single bonds between the carbon atoms, and are "saturated" with hydrogen atoms.

They have the general formula CnH2n+2 and are also known as paraffins.

Examples of alkanes include methane (CH4), ethane (C2H6), and propane (C3H8).

Explanation

CRT (Cathode Ray Tube) is a type of output device.

It displays visual information on a screen.

Such as in old computer monitors and televisions.