At which temperature does bacteria die?
- (a) 32°F
- (b) 212°F
- (c) 149°F
- (d) 6°F
- (b) 212°F
Bacteria will begin to die off at warmer temperatures, but hitting a temperature of 212°F, which is the boiling point of water, will destroy active bacteria within seconds.
Boiling Point (212°F): When bacteria encounter this temperature, the internal mechanisms of most bacteria will be quickly unraveled. Some hardy bacterial spores will survive this process, but it is still the best method for killing off most bacteria.
Pasteurization/Sanitization Range: It is worth noting that bacteria will die off at temperatures between 140°F and 149°F, but at these temperatures, the process will not happen instantly and will require minutes or even hours to be effective.
What is the colour of Oxyhemoglobin?
- (a) Red
- (b) Bright Red
- (c) Dark Red
- (d) Pale Yellow
- (b) Bright Red
Oxyhemoglobin is formed when haemoglobin binds with oxygen in the lungs, and it has a very distinctive appearance, which is a bright red colour. It is this that makes arterial blood look such a vibrant red, while deoxyhemoglobin, which is the haemoglobin that has not bound with oxygen, has a more purple-blue appearance.
Pepsinogen is converted into stomach in:
- (a) HCI
- (b) Gastrin
- (c) Bicarbonate
- (d) Pepsin
- (a) HCl
Pepsinogen, on the other hand, is the inactive precursor that is secreted by the chief cells of the stomach. When it is exposed to the brutal acidic environment of the stomach, which is brought about by hydrochloric acid (HCl), it is converted to the enzyme pepsin, which is responsible for the breakdown of proteins. The HCl, which has a low pH, brings the pH of the solution to between 1.5 to 3.5, which causes the change of shape of pepsinogen to pepsin. Once there is a small amount of pepsin, it will catalyze the conversion of more pepsinogen to pepsin, which is referred to as autocatalysis.
Option (d) Pepsin is not correct. This option is not correct because pepsin is an enzyme, not the initial substance that activates pepsinogen to pepsin. Pepsinogen, being the inactive form of pepsin, is activated initially by hydrochloric acid (HCl). When some pepsin is produced, it catalyzes the production of more pepsin from pepsinogen, but the initial activation of pepsinogen to pepsin occurs with HCl, making option (a) the correct option, not option (d).
Literacy rate in Christian world is 100% compared to that literacy rate in Muslim world is:
- (a) 50%
- (b) 40%
- (c) 60%
- (d) 70%
- (b) 40%
Based on reports analyzing literacy rates within the Organization of Islamic Cooperation (OIC) countries, the correct option according to several studies, including reports by the International Islamic News Agency (IINA), is:(b) 40% (i.e., nearly 40 percent of the Muslim world’s population is considered illiterate or cannot read/write, according to 2015-2023 reports).
Pakistan’s population is what percent of the world’s population?
- (a) 2.4%
- (b) 2.65%
- (c) 2.8%
- (d) 3.12%
- (d) 3.12%
Currently, as of mid-2026, Pakistan makes up 3.12% of the world’s total population. This makes the total population of Pakistan over 259 million as of 2026. This ranks Pakistan as the 5th most populous nation on the face of the earth, meaning that one out of every 32 inhabitants of the world is a Pakistani. The growth rate of the population of Pakistan stands at an average of 1.6% to 1.9% every year, a figure that has steadily increased from 3.07% in 2022. This trend is expected to continue into the future, with Pakistan expected to make a major contribution to the world’s population growth up to the year 2050.
What is the approximate circumference of the Earth?
- (a) 20,000 kilometres
- (b) 30,000 kilometres
- (c) 40,000 kilometres
- (d) 50,000 kilometres
- (c) 40,000 kilometres
The approximate circumference of the Earth is 40,000 kilometres, which corresponds to option (c).
The Earth is not a perfect sphere but rather an oblate spheroid, meaning it bulges slightly at the equator due to its rotation. Because of this shape, there are two primary measurements for its circumference:
Equatorial Circumference: The distance around the Earth’s equator is approximately 40,075 kilometres.
Meridional (Polar) Circumference: The distance measured through the North and South Poles is approximately 40,008 kilometres.
When did Indian Railways commence operations?
- (a) 1813
- (b) 1847
- (c) 1853
- (d) 1863
- (c) 1853
The history of the Indian Railways started on April 16, 1853. The first passenger train ran from Bori Bunder (Mumbai) and travelled 34 kilometers to Thane with 14 coaches and 400 passengers. The legendary voyage was powered by three steam locomotives named Sahib, Sindh, and Sultan..
What is the title of Hazrat Ibrahim (A.S)?
- (a) Khalilullah
- (b) Nabiullah
- (c) Rasulullah
- (d) Shahidullah
- (a) Khalilullah
Ibrahim (A.S) has the title of Khalilullah, which means “Friend of Allah.” The major titles given to Ibrahim (A.S) are as follows:
– Khalilullah (خليل الله) – Friend of Allah
– Abu al-Anbiya (أبو الأنبياء) – Father of the Prophets
– Imam al-Anbiya (إمام الأنبياء) – Leader of the Prophets
– Hanif (حنيف) – Upright believer in pure monotheism
– Jadd-ul-Anbiya (جدّ الأنبياء) – Grandfather of the Prophets
When NaHCO₃ is heated, it produces:
- (a) CO2
- (b) CaCO3
- (c) Ca(OH)2
- (d) CaO
- (a) CO2
If sodium bicarbonate (NaHCO₃) is heated, it decomposes to produce three products, namely: Sodium carbonate (Na₂CO₃), Carbon dioxide (CO₂) and Water (H₂O)
The equation for this is: 2NaHCO₃ → Na₂CO₃ + CO₂ + H₂OHeating sodium bicarbonate produces sodium carbonate, carbon dioxide, and water.
Who among the following is known as the “Poet of Beauty”?
- (a) William Wordsworth
- (b) John Keats
- (c) William Shakespeare
- (d) Percy Bysshe Shelley
(b) John Keats
John Keats is often referred to as the “Poet of Beauty,” which is apt considering his dedication to beauty and his firm belief that beauty and truth are one and the same. The line from his poem, “Ode on a Grecian Urn,” which reads, “Beauty is truth, truth beauty,” is the keystone of his poetic ideals. While many of his contemporaries were focused on creating change in society, Keats focused on finding beauty in all forms, whether it was nature, art, or life.