Explanation

On 21 July 1921, a young surgeon named Frederick Banting and his assistant Charles Best

On 11 January 1922, insulin was first used in the treatment of diabetes

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Explanation

 the OPCW Headquarters in The Hague, Netherlands

Formation: 29 April 1997

Headquarters: The Hague, Netherlands

Membership: 193 member states (all states party to the CWC are automatically members.)

4 UN Member States are non-members:

Egypt

Israel

North Korea

 South Sudan

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Official languages:

Arabic

Chinese

English

French

Russian

Spanish

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The organization was awarded the 2013 Nobel Peace Prize "for its extensive efforts to eliminate chemical weapons"

ND-31-8--2023

Explanation

James Webb Space Telescope (JWST) is a space telescope designed primarily to conduct infrared astronomy.

24 December 2021: Planned launch date after a delay due to communication issues between the observatory and the Launch Vehicle

JWST was launched into space on 25 December 2021.

JWST is the world’s largest and most powerful space telescope developed by NASA.

JWST cost approximately $10 billion

SH26-8-2023

Explanation

Venus

Eight planets in the solar system

Explanation

Saturn

Saturn is the second largest planet in our solar system.

Titan is the name of the largest moon of Saturn

Ringed Planet is nicked name for Saturn

Explanation

 a noun phrase has a noun as its Head. Determiners and adjective phrases usually constitute the pre-Head string:

[NP the children]

[NP happy children]

Explanation

If I knew her name, I would tell you means

اگر مجھے اس کا نام معلوم ہوتا تو میں آپ کو بتاتا

The second part of the sentence is in the past tense.

The verb to be used should also be in the same tense.

The past tense of the word "know" is "knew".

Therefore, the correct tense here is past tense and the verb used is "knew".

Explanation

The region of "Tibet" is currently under the control of China

In the mid-13th century, Tibet was officially incorporated into the territory of China's Yuan Dynasty.

TibetIt's nicknamed the “Roof of the World” for its towering peaks.

It shares Mt. Everest with Nepal

ND6-08-2023

Explanation

Have you ever been to Amsterdam? کیا آپ کبھی ایمسٹرڈیم گئے ہیں؟

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The Above sentence is going to present perfect tense

have/has + past participle. 

you------> noun

Ever' and 'never' are always placed before the main verb (past participle). Ever is used: In questions 

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Option C is correct "as ever been "indicates the use of the present perfect tense. Also, have is used as an auxiliary here.

An auxiliary verb is used to form tenses, moods, tones, etc.

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The other options are wrong as no other tense other than the present perfect tense can be used.

Explanation

World Bicycle Day is marked on 3rd June every year to recognize bicycling as a way to get a sustainable form of travel.

In April 2018, the United Nations General Assembly declared June 3 as World Bicycle Day

Theme 2023: Riding Together for a Sustainable Future

Theme 2024: Promoting Health, Equity, and Sustainability through Cycling

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