Explanation

Jabir Ibn Hayyan (721–815 CE) was a pioneering Muslim scientist known as the father of early chemistry and a contributor to biological sciences.

Explanation

Inaugural two-day visit to meet King Salman of Saudi Arabia in Jeddah.

to discuss matters of regional and bilateral interest.

Khan also performed the Umrah in Mecca and visited the Prophet's Mosque in Medina.

Date: 18–19 September 2018

Explanation

Given:

Time taken by 6 men to complete work= 10 days

Solution:

Time taken by 1 man = 6 x 10 = 6o hours

The time taken by 4 men to complete the work:

60/ 4 = 15 hours.

Explanation

BRICS is an association of five major emerging economies:

• Brazil, Russia, India, China, and South Africa.

These countries come together to discuss cooperation in economic, political, and cultural matters.

The 10th summit took place in Johannesburg in July 2018.

Explanation

New York is not on the Pacific Coast, while Taipei and Shanghai are: 

• New York: Located in the Northeastern United States, New York City is situated at the meeting point of the Hudson River and the Atlantic Ocean. 
• Taipei: A city on the Pacific Coast 
• Shanghai: A city on the Pacific Coast 

The Pacific Coast is the coastline that runs along the Western United States and the North Pacific Ocean.

Some ports on the Pacific Coast include: San Francisco, Port of Seattle, Port of Tacoma, and Tijuana.

Explanation

IRON:

Symbol: Fe

Atomic mass: 55.845 u

Atomic number: 26

Electron configuration: [Ar] 3d64s2

Density: 7.874 g/cm³ (near room temperature)

Electrons per shell: 2, 8, 14, 2

Melting point: 1,538 °C

Explanation

The Sustainable Development Goals (SDGs) are a collection of 17 global goals set by the United Nations in 2015, with a target date of 2030.

These goals are aimed at addressing various global challenges, including 

No Poverty (Goal 1):

End poverty in all its forms everywhere.

Zero Hunger (Goal 2):

End hunger, achieve food security and improved nutrition, and promote sustainable agriculture.

Good Health and Well-being (Goal 3):

Ensure healthy lives and promote well-being for all at all ages.

Explanation

A function inside a function is called a Nested function.

Explanation

Men days

60 : 40

40 : x           

60/40= x/40,     40x= 60* 40

x= 40*60/40,      x= 60

Explanation

September 11 attacks, also called 9/11 attacks,

series of airline hijackings and suicide attacks committed in 2001 by 19 militants associated with the Islamic extremist group al-Qaeda

against targets in the United States, the deadliest terrorist attacks on American soil in U.S. history.