Explanation

A concave lens causes light rays to diverge or spread apart after passing through it.

That's why it’s also called a diverging lens.

Explanation

The heart is the central organ of the blood circulatory system, responsible for pumping blood throughout the body.

It circulates oxygen, nutrients, and waste products via arteries and veins.

Explanation

Lemon is rich in Vitamin C, which helps boost immunity and improve skin health.

Other citrus fruits like oranges and lime are also high in Vitamin C.

But among the given options, lemon contains the most.

Explanation

The Angstrom (Å) is commonly used to measure wavelengths of light, where

1 Å = 10⁻¹⁰ meters.

Light wavelengths typically range from 4000 Å to 7000 Å.

Explanation

Explanation

The Aedes mosquito, especially Aedes aegypti, is the primary vector of dengue fever.

Anopheles transmits malaria.

Culex transmits other diseases like West Nile virus.

Explanation

Iron is essential for the formation of hemoglobin.

About 70 percent of your body's iron is found in the red blood cells of your blood called hemoglobin and in muscle cells called myoglobin.

Explanation

• ECG (Electrocardiogram) is a test used to measure the electrical activity of the heart.

It is commonly used for the diagnosis of heart-related ailments, such as:

• Arrhythmias (irregular heart rhythms)
• Coronary artery disease
• Cardiac arrests
• Heart failure

Explanation

A triangular prism has 2 triangular faces (at both ends) and 3 rectangular faces connecting them.

So, the number of triangular surfaces = 2.

Explanation

Hazrat Khadija (RA) was the first wife of Hazrat Muhammad ﷺ.

At the time of the marriage, she was 40 years old. Muhammad was 25 years old.

She passed away when she was 65 and Prophet Muhammad ﷺ was 52 years old.

Her friend Nafeesa carried a message from Nikah