Explanation

 Hematite is an ore of iron

It is one of the most abundant minerals on Earth's surface.

It is a common rock-forming mineral

That is found at locations throughout the world in:

• sedimentary rocks
• metamorphic rocks
• igneous rocks 

Explanation

Bats are the only mammals capable of sustained flight.

It using their winged forelimbs to navigate through the air.

Explanation

The constellation of seven bright stars known as the Great Bear is Ursa Major, which also includes the Big Dipper asterism: 

Name:

The Latin name Ursa Major means "greater (or larger) bear". 

Size:

Ursa Major is the third-largest constellation in the sky and the largest in the Northern Hemisphere

Explanation

Bone marrow is the soft tissue found inside the cavities of bones.

It responsible for producing red blood cells (RBCs), white blood cells (WBCs), and platelets.

Explanation

Ornithophily is the term used for pollination by birds.

This type of pollination typically involves brightly colored flowers with a lot of nectar to attract bird species.

Explanation

Velocity is measured by a speedometer.

It is a device that measures the rate of change of an object's position with respect to time.

It typically measured in units of distance per unit time.

Such as kilometers per hour (km/h) or miles per hour (mph).

Explanation

• Chlorine is commonly used for disinfection of water, as it is effective against a wide range of bacteria, viruses, and other microorganisms.
• Chlorine is often added to drinking water as a disinfectant, and it is also used to disinfect swimming pools and other water sources.

Explanation

Lead (Pb) is not essential for plants.

It does not play any known role in plant growth or metabolism.

In fact, it can be toxic to plants when present in significant amounts.

Explanation

If the ozone layer disappears, ultraviolet (UV) rays from the sun will reach the Earth's surface in higher amounts.

It leading to increased risks of skin cancer, cataracts, and harmful effects on ecosystems and wildlife.

Explanation

Mujadid Alif Sani is the title of Sheikh Ahmad Sirhindi, an Indian Islamic scholar, Hanafi jurist, and member of the Naqshbandī Sufi order.

He is known for countering unorthodox Sufism and mystic beliefs, with notable works including Isbat-ul-Nabat and Risal-i-Nabuwat.