Explanation

• Gamma rays have the highest penetrating power among these particles.
• Due to their lack of mass and charge.
• It allowing them to pass through most materials.

Last verified on 12-04-2026

Explanation

Khanki Headworks is  situated on the River Chenab in Gujranwala District 

The construction was completed in 1889 (first build)

It is also used to divert water to the Lower Chenab Canal

The old "Head Khanki Barrage" was built from 1892 to 1898 on the Chenab River 

It is one of the oldest headworks in Pakistan

It was replaced by the modern New Khanki Barrage, which was completed in 2017 (latest build) to enhance flood control and water management. 

Explanation

Venus is called Morning or Evening Star.

Venus is the brightest planet in the Solar System.

Explanation

Explanation

A deficiency in vitamin C leads to scurvy, causing problems with teeth (bleeding/loose gums, weakened enamel)

And skin (easy bruising, rough/scaly skin, poor wound healing, corkscrew hair, red spots around follicles)

RK12-12-2022

Explanation

Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms.

Explanation

Solar energy is created by nuclear fusion that takes place in the sun.

Fusion occurs when protons of hydrogen atoms violently collide in the sun's core and fuse to create a helium atom.

This process, known as a PP (proton-proton) chain reaction

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ND17-1-2023

Explanation

The human cell contains 46 chromosomes.

These are organized into 23 pairs, where each parent contributes one chromosome to each pair, resulting in a total of 46 chromosomes in most human cells.

This number includes 22 pairs of autosomes and 1 pair of sex chromosomes, determining an individual's sex (XX for females and XY for males).

Explanation

Refraction is the bending of light as it passes from one medium to another (e.g., air to water).

This occurs due to a change in the speed of light in different media.

Explanation

Mercury With a diameter of 4,879 km (3031.67 mi).

Mercury is the smallest planet in our Solar System.

Nearest Planet to Sun.

Fastest Planet.