Explanation

In animal cells, after nuclear division, a cleavage furrow forms in the middle of the cytoplasm during cytokinesis.

This furrow deepens and eventually splits the cell into two daughter cells.

Explanation

Undersea earthquakes displace a large volume of water, generating powerful sea waves.

This sudden movement creates a tsunami, which can travel across oceans at high speeds.

Explanation

Sucrose is also known as Table sugar.

Sucrose is a type of common sugar.

It is a disaccharide, a molecule which consists of two monosaccharides: glucose and fructose.

Explanation

'Kitab Ash Shifa' written by Abu Ali ibn Sīna

He began to compose the book in 1014

Completed it around 1020,

And published it in 1027.

This book is also known as The Book of Healing.

Explanation

Burning pure hydrogen produces only water vapor as a byproduct, causing no harmful pollution like carbon or sulfur oxides.

Hence, hydrogen is considered a clean fuel with no emission of pollutants such as sulphur dioxide or carbon dioxide.

Explanation

Calculate the distance covered.

Distance = Speed × Time = 30 m/s × 10 s = 300 m.

Explanation

MRI (Magnetic Resonance Imaging) uses a strong magnetic field and radio waves to create detailed images of organs and tissues.

It does not use ionizing radiation, unlike X-rays or CT scans.

Explanation

Helium (He) is a noble gas.

Its atoms do not naturally bond with each other under standard conditions.

It exists as monoatomic (single-atom) molecules.

Nitrogen (N₂), Oxygen (O₂), and Hydrogen (H₂) are diatomic molecules.

It means they naturally form bonds between two atoms of the same element.

Explanation

To find the number of men, subtract the number of women from the total population:

6753 - 3985 = 2768.

Explanation

To find how long Ahmad takes to solve 3 questions:

Step 1: Time per question

Time per question = 9.8/7 = 1.4 minutes

Step 2: Time for 3 questions

1.4 × 3 = 4.2 minutes