Explanation

• Law of Inertia = Newton’s First Law of Motion.
• States: “An object at rest stays at rest, and an object in motion continues in the same direction and speed unless acted upon by an unbalanced force.”
• Explains why seat belts are important in cars.
• Applies to all objects on Earth and in space.

Last verified on 13-03-2026

Explanation

• Vitamin A deficiency → Night blindness (Nyctalopia)
• Vitamin A is important for vision and immune function.

Additional information:

• Vitamin K is essential for blood clotting.
• Vitamin D helps in calcium absorption and bone mineralization.
• Vitamin B1 supports nerve function and energy metabolism.

Last verified on 01-02-2026

Explanation

A myopic defect can be corrected by using a concave lens of suitable power. 

Myopia is a disease related to Eye

Myopia is a common vision condition in which we can see objects near to us clearly, but objects farther away are blurry.

Myopia means دورکی نظر کی کمزوری

Explanation

The sun's energy, called solar radiation, isn't equally distributed across the globe because of Earth's spherical shape.

This “unequal helping” of solar radiation across our planet is effectively what causes weather and climate.

Explanation

Light Year is the distance that light can travel in one year.

The distance light travels in one year is known as light year.

Explanation

A solar eclipse can only take place during the phase of the new moon

when the moon passes directly between the sun and Earth and its shadows fall upon Earth's surface.

Explanation

Ambassador Amna Baloch assumed the charge as Foreign Secretary of Pakistan in Sep 2024

Number: 33rd Foreign Secretary

Predecessor: Syrus Sajjad Qazi

Amna Baloch joined the Foreign Services of Pakistan in 1991

Explanation

The most stable metals, such as gold and platinum, do not corrode easily

because they do not lose electrons easily.

while

Metals placed higher in the reactivity series, such as iron, zinc, etc., get corroded very easily

Explanation

Isotope of Hydrogen:

Tritium (symbol ³H) is one of the three isotopes of hydrogen. 

Composition:

Its nucleus contains one proton and two neutrons. 

Instability:

The nucleus is unstable and decays by beta decay into helium-3, a stable isotope of helium. 

Radioactivity:

It is a radioactive material with a half-life of approximately 12.3 years. 

Production:

Tritium is produced naturally in the upper atmosphere by cosmic rays and also as a byproduct in nuclear reactors and nuclear weapons.

Explanation