Explanation

The Pious Caliphs were the first four Caliphs.

They were:  Abu Bakr, Umar, Uthman, Ali

The first Caliph who helped spread Islam was Muhammed's father-in-law, Abu-Bakr.

He served for only 2 years, from 632 to 634

Hazrat Abubakar (RA) was the first Pious Caliph of Islam.

Hazrat Abubakar (RA) became caliph in 632 AD.

Hazrat Abubakar (RA) died in 634 AD.

The Pious Caliphs were the first four Caliphs.

They were:  Abu Bakr, Umar, Uthman, Ali

ND5-5-2023

Explanation

Hydroelectric power is considered the cheapest and most environmentally friendly source of electricity.

As it utilizes the energy from flowing water without emitting greenhouse gases.

Explanation

Selling price (SP) = Rs. 40.00

Profit percentage = 15%

Cost price (CP) = SP / (1 + 15/100)

= 40 / 1.15

= Rs. 34.78

To earn a 20% profit:

New selling price (SP) = CP * (1 + 20/100)

= 34.78 * 1.20

= Rs. 41.74

The correct answer is 41.74.

Explanation

Amount of work done by A and B in 1 day = 1/30

Amount of work done by A and B in 20 days = 20 × (1/30) = 20/30 = 2/3

Remaining work – 1 – 2/3 = 1/3

A completes 1/3 work in 20 days

Amount of work A can do in 1 day = (1/3)/20 = 1/60

=> A can complete the work in 60 days

Explanation

Let's say the number of girls is G and the number of boys is B.

3/4G = 1/2B

Given that the total number of pupils is 1420:

G + B = 1420

Solving the equations, we get B = 852.

The correct answer is 852.

Explanation

• Das Kapital is also known as Capital: A Critique of Political Economy or sometimes simply Capital.
• Das Capital book written by Karl Marx.

Explanation

Colour blindness is a genetically linked disease.

It typically inherited from one's parents and affecting the genes that code for colour vision.

Explanation

The brain of the computer is the CPU

CPU stands for the central processing unit

The first commercial CPU was invented by Italian Physicist Federico Faggin

The first CPU was the Intel 404 released by Intel in 1971.

**

The five basic parts of a computer are:

1. the motherboard
2. central processing unit (CPU)
3. input-output units
4. memory (RAM and ROM)
5.  storage (SSD or HDD)
   

***

AGM 07.5.23

Explanation

Turkey has its land mass in two continents: Asia and Europe.

It with the Bosphorus River separating the two continents.

Approximately 97% of Turkey's land is in Asia, while 3% is in Europe.

Explanation

The Pacific Ocean is the largest and deepest in the world.

The mean depth is 14,040 feet (4,280 meters).

It covers around 28% of the earth.

The deepest part of the ocean is called the Challenger Deep 

Top five oceans by size

1. Pacific,
2. Atlantic,
3. Indian,
4. Southern,
5. Arctic Ocean

*****History of Oceasns****

71% of Earth's surface is covered by ocean

The warmest Ocean in the world is the Indian Ocean.

The hottest ocean area is the Persian Gulf.

The Pacific is the largest ocean in the world.

The Arctic is the shortest ocean in the world.

Diamantina Trench is the deepest place in the Indian Ocean

Country Jordon has no Ocean

RY4-12-2022ND23-4-2023