Everyday Science — All MCQs
2717 questions available
Q2661.Sedimentary Rocks how much part of earth:
Correct Answer: C
Sedimentary rocks cover about 75% of the Earth's land surface, although they make up a much smaller fraction of the crust's volume.
Q2662.The Third Most abundant element is:
Correct Answer: C
By mass in Earth's crust, after Oxygen and Silicon, Aluminum is the third most abundant element.
Q2663.How many Neutrons in Hydrogen:
Correct Answer: A
The most common isotope of Hydrogen (protium) has zero neutrons, just one proton and one electron.
Q2664.The Life of red blood cells is:
Correct Answer: B
Red blood cells have a lifespan of about 120 days.
Q2665.I want ___ the airport to catch flight:
Correct Answer: B
to' is correct — 'want to [go] to the airport'.
Q2666.Patriotic Song "Qasam Us Waqt ki" was sung by:
Correct Answer: A
Qasam Us Waqt Ki' was sung by Junaid Jamshed.
Q2667.the material used in blood clotting is made up of
Correct Answer: B
Blood clotting factors are primarily made of Protein (e.g., fibrinogen).
Q2668.Isotopes of an element have the same number of
Correct Answer: B
Isotopes of an element share the same number of Protons (defining the element) but differ in their number of neutrons.
Q2669.Who invented Hydrogen Bomb?
Correct Answer: C
Edward Teller is widely credited as the chief developer of the hydrogen (thermonuclear) bomb.
Q2670.Distance between planet and star is measured in
Correct Answer: B
Astronomical distances between planets and stars are commonly measured in Light Years.
Q2671.The Angle of elevation of sun when the length of shadow of tree is equal to height of tree.
Correct Answer: B
When shadow length equals object height, tan(angle)=1, so the angle of elevation is 45°.
Q2672.Which country developed the world's first coronavirus vaccine for animals?
Correct Answer: A
Russia developed the world's first COVID-19 vaccine for animals.
Q2673.CoronaVac is an inactivated virus COVID -19 Vaccine was developed by:
Correct Answer: A
CoronaVac, an inactivated-virus COVID-19 vaccine, was developed by Sinovac Biotech in China.
Q2674.The Kandhkot gas field is located in
Correct Answer: C
The Kandhkot gas field is located in Kashmore, Sindh.
Q2675.Most common element to all perfumes ls
Correct Answer: A
Ethyl Alcohol (ethanol) is the most common solvent base used across nearly all perfumes.
Q2676.Which country became the worlds leading exporter of Liquefied Gas (LNG)?
Correct Answer: D
The USA became a leading exporter of Liquefied Natural Gas (LNG) in relevant reporting.
Q2677.The optical fibers used in fiber optics are made of
Correct Answer: A
Optical fibers are made of thin strands of Glass (or sometimes plastic) that transmit light signals via total internal reflection.
Q2678.Name the element which is used to fabricate solar cells and transistors?
Correct Answer: A
Silicon is the primary semiconductor material used to fabricate solar cells and transistors.
Q2679.Which of the following is the primary producer?
Correct Answer: A
Bacteria (specifically photosynthetic/chemosynthetic bacteria) act as primary producers, converting energy into organic matter at the base of many food chains.
Q2680.In Human Body Pancreas secretes:
Correct Answer: C
The pancreas secretes Insulin, the hormone that regulates blood glucose levels.