Explanation

The idiom once in a blue moon means on rare occasions or rarely.

The idiom means something that happens very rarely or seldom.

It emphasizes infrequent or unusual events.

Explanation

A normal human body temperature of 98.6°F corresponds to 37°C

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Additional information:

The body temperature also varies by person, age, activity, and time of day.

The Hypothalamus gland controls the temperature of the human body

A temperature over 100.4°F (38°C) most often means you have a fever caused by an infection or illness.

Explanation

Pakistan conducted a series of nuclear tests on 28 May 1998 at the Chagai test site, in Balochistan.

5 Nuclear tests were conducted by Pakistan at 15:15 hrs PST on 28 May 1998.

The tests were performed at Ras Koh Hills in the Chagai District of Balochistan Province.

Chagai-I was Pakistan's first public test of nuclear weapons.

while 

Chagai-II is the codename assigned to the second atomic test conducted by Pakistan, carried out on 30 May 1998

These tests followed the Chagai-I series

The test site was Kharan Desert, Pakistan

The number of tests is 1

Explanation

Must read it

The largest country in the world by area is?

Explanation

When white light passes through a prism, it splits into 7 colors, forming a spectrum known as a rainbow:

1. Red
2. Orange
3. Yellow
4. Green
5. Blue
6. Indigo
7. Violet

The separation of visible light into its different colours is known as dispersion.

Explanation

• Hanna Lake is located in Urak Valley.
• It about 10 km from Quetta city in Balochistan Province, southwestern Pakistan.
• It covers an area of 27 acres.
• It has a depth of 49 feet.

Explanation

Norway is called the “Land of the Midnight Sun”.

Additional information:

Because the northern part of the country is located above the Arctic Circle,

where the sun shines 24 hours a day from mid-May to mid-July.

From late May to late July, the sun never completely descends beneath the horizon in areas north of the Arctic Circle.

the rest of the country experiences up to 20 hours of daylight per day.

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Explanation

Angel Falls is a waterfall in Venezuela.

Height: 979 m

Elevation: 1,283 m

Longest drop: 807 m

Number of drops: 2

 It is the world's tallest uninterrupted waterfall

The waterfall has been known as Angel Falls since the mid-20th century

Angel Falls is named after Jimmie Angel, a U.S. aviator, who was the first person to fly over the falls

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Explanation

Karakoram Range is a mountain range located between China and Pakistan.

The highest Peak of the Karakoram range is K2 (8611).

The Karakorams cover parts of:

• Afghanistan,
• China,
• India,
• Pakistan,
•  Tajikistan

A Karakoram peak called K2 is the second-highest mountain in the world

while

The road connecting Pakistan and China is called Karakoram Highway

Explanation

Tarbela Dam was built on the Indus River in KPk.

It is located mainly in the Swabi District Tehsil Topi of KPK.

It is the largest earth-filled dam in the world

The Construction began in 1968  

They were Opened in 1976

Height: 470 feet (143 m)