One Paper MCQs Solved Preparation Material All in One for PPSC FPSC NTS PTS OTS

▪ What causes earthquakes? Earthquakes occur when energy stored within the Earth, usually in the form of strain in rocks, suddenly releases. This energy is transmitted to the surface of the Earth by earthquake waves.
▪ What is Galaxy? Galaxy, a massive ensemble of hundreds of millions of stars, all gravitationally interacting, and orbiting about a common center. Astronomers estimate that there are about 125 billion galaxies in the universe. All the stars visible to the unaided eye from Earth belong to Earth’s galaxy, the Milky Way.
▪ What is an anemometer? Anemometer (Greek anemos, “wind”; metron, “measure”), an instrument that measures wind speed.
▪ What is paleontology? Paleontology, study of prehistoric animal and plant life through the analysis of fossil remains.
▪ How far is the sun from earth? the average distance from Earth is 150 million km (93 million miles).
▪ What was the first creature to travel in space? The Soviet Union also launched the first living creature, a dog named Laika, into space on November 3, 1957.
▪ What is dry ice? Solid carbon dioxide, known as dry ice, is widely used as a refrigerant. Its cooling effect is almost twice that of water ice; its special advantages are that it does not melt as a liquid but turns into gas, and that it produces an inert atmosphere that reduces bacterial growth.
• The origin of earth dates back to approximately? 4.6 billion year
• The dates on which day and night is equal are? 21st march and 23rd september
• Haematite is an ore of iron.
• Earth completes one rotation on its axis in? 23 hours 56 mints and 4.9 sec
• Which of the following gases is most predominant in the sun? Hydrogen
• The coldest planet is Neptune.
• The Cornea of the eyes is the only part of body without blood supply.
• The Average weight of man’s brain is 4.8 ounces.
• The Average weight of woman’s brain is 4.4 ounces.
• The most common element in the atmosphere is Nitrogen (N), which is present at 78.08 percent by volume and 75.52 percent by mass.