🔬 General Science Solved MCQs with Answers

Practice 4010 approved 🔬 General Science questions with verified answers from the 🌐 Current Affairs & GK subject for Pakistan exams.

4010 solved MCQs

The Green House Effect is caused by an excess of?Answer: Carbon dioxide A periscope is an optical instrument that uses mirrors to reflect images through a tube. The mirrors are placed at an angle of _____?Answer: 45 degree The crude birth rate is defined as the number of live births in a year per ______ people in a population.Answer: 1000 Hydrogen can be separated from hydrocarbons through the application of heat. This process is known as _____?Answer: Reforming Cloning is the production of multiple identical offspring. From which type of cell was Dolly cloned?Answer: Udder cell The special type of x-ray tests that produce cross-sectional images of the body using c-ray scans in the computer is called _____?Answer: CT scan Neck shaped part of the carpel, which is below the stigma through which the pollen tube passes, is called _____?Answer: Style If pollen grains are transferred from the flower of one plant to the stigma of the flower of another plant (of the same species), it is called cross-pollination. Identify the plant that undergoes cross-pollination?Answer: Papaya Inclined plane is a simple machine with one end relatively higher than the other end is known as ______?Answer: Ramp To hear a clear echo, the reflecting surface should be at least how much away from the source of sound?Answer: 17 metre What is the name of the gaseous layer that surrounds the Earth?Answer: Atmosphere Almost half of the body weight is due to which one of the following?Answer: Muscles What is the main reason for the death of aquatic animals like fish in sewage-contaminated water?Answer: Lack of dissolved oxygen. The horizontal row of the periodic table is called period. The atomic number of Neon (Ne) is 10, it belongs to which one of the following period?Answer: 2 GMO Cheese required as a clotting agent produced by using which one of the following enzymes?Answer: Chymosin The process of transforming a liquid into a semisolid is called _____?Answer: Coagulation Which of the following is an example of a research satellite?Answer: Hubble Space Telescope The component of a solution which is in less quantity is called the solvent. Turpentine is used as a solvent in the production of which one of the following?Answer: Paints and inks The feeling of the original sound remains in the human brain till ______?Answer: 0.1 second When sand enters the body of an oyster, after some years which process occurs?Answer: Pearl formation Which one of the following is true about electromagnetic waves?Answer: Transverse in nature An example of the solution "solid in gas" is ______?Answer: Smoke Natural rubber is an elastomer originally derived from latex, a milky colloid produced by some plants. The chemical name for the purified form of natural rubber is _____?Answer: Polyisoprene One day on Venus is equal to ______?Answer: 1 year on Earth The number of ozone molecules that can be destroyed by one chlorine atom is _____?Answer: 100,000 When oil and petrol spread over the water surface, which one of the following occurs?Answer: Sunlight penetration and oxygen mixing are prevented. Earthquakes generate both transverse waves and longitudinal waves. Identify another name for transverse waves in the context of earthquakes ______?Answer: S-waves The distance covered by a wave in one second is called _____?Answer: Velocity of wave Magellanic clouds are which type of galaxy?Answer: Irregular The shoot arises from which part of the seed?Answer: Plumule