Explanation

Altimeters:

Function:

It primarily measures altitude by detecting changes in atmospheric pressure. 

Aviation use:

Pilots heavily rely on altimeters to determine their aircraft's height above sea level during flight. 

Types:

There are different types of altimeters including pressure altimeters and radio altimeters. 

Explanation

Explanation

The first human cases of COVID-19, the disease caused by the novel coronavirus causing COVID-19, subsequently named SARS-CoV-2 were first reported by officials in Wuhan City, China, in December 2019.

Explanation

A leap year occurs almost every four years to keep our calendar aligned with the Earth's orbit around the Sun.

The extra day, February 29th, is added to account for the fact that the Earth's orbit takes approximately 365.25 days.

Explanation

The height of the Eiffel Tower is 1063 feet

Architects: Stephen Sauvestre, Maurice Koechlin, Émile Nouguier

Explanation

Bahadur Shah Zafar is the last Mughal emperor of India (reigned 1837–57).

He was a poet, musician, and calligrapher, more an aesthete than a political leader.

Bahadur Shah Zafar was born October 24, 1775, in Delhi, India

Bahadur Shah Zafar died November 7, 1862, in Rangoon [now Yangon], Myanmar.

Explanation

Vitamin D is essential for: Strengthening bones and teeth and Preventing Rickets, a disease characterized by:

• Soft and weak bones
• Skeletal deformities
• Stunted growth
• Regulating calcium levels and bone mineralization

Explanation

Explanation

Explanation

Railway tracks are made of steel, which expands in summer heat.

The gaps between rails allow space for this expansion, preventing the tracks from buckling or derailing trains.