The World Day to Combat Desertification and drought is a United Nations is observed on:
- (a) 17 June
- (b) 17 July
- (c) 17 August
- (d) 17 May
- (a) 17 June
The United Nations observes June 17 every year as the World Day to Combat Desertification and Drought. This is a special day to spread awareness on the consequences of desertification and drought and to promote measures to combat them and restore the natural environment. This observance was adopted by the U.N. General Assembly in December 1994.
A normal CD-ROM usually can store up to data:
- (a) 650 MB
- (b) 680 MB
- (c) 720 MB
- (d) 820 MB
- (b) 680 MB
With a storage capacity of about 680 megabytes, the CD-ROM quickly gained commercial acceptance as a superior alternative to floppy disks, which had a maximum capacity of only 1.4 megabytes. The significantly larger storage space of CD-ROMs allowed users to store software, multimedia files, and large amounts of data more efficiently. As a result, CD-ROMs became widely used in homes, educational institutions, and businesses for data distribution and storage.
Dengue is caused by which type of mosquito?
- (a) Culex
- (b) Marsh
- (c) Aedes
- (d) Mayaro
- (c) Aedes
Dengue is a viral infection that is usually acquired when a female mosquito of the type that is famous for its white markings, the Aedes aegypti mosquito, and to a lesser degree the Aedes albopictus mosquito, takes a blood meal from an infected individual. These mosquitoes love to breed in the clean standing water they find near people’s homes. Unlike most other mosquitoes, the female Aedes aegypti mosquito bites during the day, especially during the early morning and the late afternoon, though she can bite at any other time when she is in the shade or inside a house. Once she has bitten an infected individual, she becomes a lifelong carrier of the virus and can then transmit the virus to other people she bites.
Which tube among the following joins kidneys and bladder?
- (a) Urethra
- (b) Ureter
- (c) Infenor Vena Cava
- (d) Supeapublic Tuba
- (b) Ureter
The ureters are two thin, muscular tubes that connect each kidney to the urinary bladder. Their primary function is to transport urine from the renal pelvis (the funnel-like part of the kidney) to the bladder for temporary storage. This movement is facilitated by peristaltic contractions, which are rhythmic waves of muscle tightening that force urine downward.
Edward Jenner successfully developed world’s first vaccine in:
- (a) 1796
- (b) 1696
- (c) 1896
- (d) 1596
- (a) 1796
On the 14th of May 1796, Edward Jenner used cowpox matter to vaccinate 8-year-old James Phipps, and a few months later tested the vaccine’s effectiveness against smallpox in July. In 1798, his findings were published in a paper titled “An Inquiry into the Causes and Effects of the Variolae Vaccinae.”
The pancreatic juice, which aids digestion, is secreted into:
- (a) Liver
- (b) Duodenum
- (c) Stomach
- (d) Ileum
- (b) Duodenum
The beginning part of the small intestine, known as the duodenum, receives the exocrine secretions of the pancreas. The pancreatic juice passes through the pancreatic duct, reaching the duodenum via the ampulla of Vater. The pancreatic juice carries vital digestive enzymes such as amylase, lipase, and trypsin, as well as bicarbonate, which helps to neutralize the very acidic chyme that comes from the stomach.
Who among the following transmitted first radio signal through air?
- (a) Faraday
- (b) Marconi
- (c) Graham Bell
- (d) Tesla
- (b) Marconi
Guglielmo Marconi is most commonly credited with sending and receiving the first airwaves through space, wiring 1.5 miles in 1895, followed by the first transatlantic radio transmission in 1901. Although Heinrich Hertz had proven the existence of electromagnetic waves in the late 1880s, and Nikola Tesla had proposed the idea of wireless communication in 1893, it was Marconi who developed the first practical long-distance, commercially viable wireless telegraphy system, which earned him the Nobel Prize in Physics in 1909.
High-tech exports of Pakistan stand at:
- (a) 0.7%
- (b) 0.8%
- (c) 0.9%
- (d) 1.4%
- (d) 1.4%
Who among the following Prime Ministers of Pakistan secured Gwadar from Oman?
- (a) Feroz Khan Noon
- (b) Ch. Muhammad Ali
- (c) Muhammad Ali Bogra
- (d) I.I Chundriger
- (a) Feroz Khan Noon
On September 8, 1958, the acquisition of the Gwadar enclave from the Sultanate of Oman was finalized by the Prime Minister, Malik Feroze Khan Noon, through a purchase agreement. The acquisition, which was also supported by the Aga Khan and cost $3 million (approximately Rs 5.5 billion), integrated the enclave into Pakistan on December 8, 1958.
Villi are small finger like structures in the:
- (a) Large intestine
- (b) Small intestine
- (c) Stomach
- (d) Esophagus
- (b) Small intestine
Villi are small, finger-like structures that line the inside of the small intestine. The primary role of villi is to greatly increase the surface area for nutrient absorption into the blood, allowing our bodies to obtain about 90% of the nutrients from the food that we consume.