FPSC Online MCQS Test Preparation 20 Science General Knowledge Questions Answers for competitive exams online preparation. Science gk solved questions tests.
- What is a non-metallic mineral?
- What type of radiation does the ozone layer prevent from entering the atmosphere?
- What causes the phenomenon of Aurora Borealis, the display of red and green lights in the northern hemisphere?
- Why is yeast used in making bread?
- With which geographical feature is an oasis associated?
- What principle does quartz crystal in quartz watches operate on?
- What are fruits without seeds, like bananas, called?
- What is an animal that captures and readily kills living animals for food called?
- Why are two rails in a railway track joined end to end with a gap in between?
- What is the famous book of Ibn-Sina in which he discussed human physiology and medicine called?
- What is an organic molecule needed by the body in small amounts?
- What is the last structure through which inhaled air passes?
- What is a form of sexual reproduction?
- Is cobalt strongly attracted, weakly attracted, or not attracted by a magnet?
- What are the two elements that make up laughing gas (nitrous oxide)?
- How is Hepatitis A transmitted to different individuals?
- Which unit of the computer system coordinates different devices?
- What is the most abundant element in the human body?
- How can cancer be treated?
- From which compound do animals mainly obtain carbon dioxide?
Answer Key:
- A non-metallic mineral is a mineral that does not contain metal elements.
- The ozone layer prevents ultraviolet radiation from entering the atmosphere.
- The phenomenon of Aurora Borealis, the display of red and green lights in the northern hemisphere, is due to radiations from the ionosphere.
- Yeast is used in making bread because it produces carbon dioxide, which helps the bread rise.
- An oasis is associated with a desert.
- Quartz crystal in quartz watches operates on the principle called the piezoelectric effect.
- Parthenocarpic fruits
- Predator
- Accidents due to expansion in summer can be avoided
- Al-Qanoon
- Vitamin C
- Bronchiole
- Hermaphroditism
- Weakly attracted by a magnet
- Nitrogen and Oxygen
- Feces
- Control unit
- Oxygen
- Chemotherapy and radiotherapy
- Glucose
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