Explanation

"Conventional" refers to common or traditional methods or practices.

"The conventional modes of transportation would be by train or car but we have decided to take a hot-air balloon trip across England" makes sense as it contrasts traditional transportation with a unique choice.

Explanation

The phrase "object to" is followed by a noun or gerund (verb + ing), making "To my calling" correct.

"Most executives do not object to my calling them by their first names" is grammatically accurate.

Explanation

The sentence structure follows a future passive construction, indicating the subject (I) will receive the action (employment) from the university.

"I will be employed by the university" is the correct phrasing for the intended meaning.

Explanation

"Complete and constant openness is a notion that can be reduced to absurdity. Am I required to stop everyone on the street and tell them my reaction to their appearance?"

The sentence uses irony to question extreme openness, and "reduced" and "required" fit the tone and logic well.

Reduced means کم

Required means ضروری ہے

Explanation

Helium hydride (HeH+) was the first molecule discovered in space, identified in 2019 by astronomers.

It was found in a planetary nebula, marking a significant discovery in molecular chemistry in space.

Explanation

The Battle of Verdun took place in 1916, which was one of the major battles on the Western Front during World War I.

Romania declared war on the Central Powers in 1916.

Explanation

"When organisations encourage creativity and risk taking, the usual method of maintaining order and decorum are indeed shaken."

This makes sense as "encourage" aligns with fostering creativity, and "decorum" refers to maintaining order or proper conduct, which may be challenged in such environments.

Encourage means حوصلہ افزائی کریں

Decorum means سجاوٹ

Explanation

Rocket velocity is governed by the rocket equation, which depends on exhaust velocity and the rate of mass ejection.

Higher exhaust velocity and more mass loss (fuel ejection) produce greater thrust, resulting in higher rocket velocity.

Explanation

Familiar means واقفیت

The correct preposition after "familiar" when referring to a person is "to".

"Familiar to" means we recognize it or have seen it before.

Explanation

The speed of sound depends on the medium's density and elasticity.

It travels fastest in solids (due to tightly packed molecules) and slowest in gases (like air).

Glass (Solid) – ~5,640 m/s

Water (Liquid) – ~1,480 m/s

Wood (Solid) – ~3,300–3,600 m/s

Air (Gas) – ~343 m/s