General Science Questions Practice Question and Answer
8 Q: Which of the following consists of the exchange part of the respiratory system?
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63c8d792bdbddb32fda020a6- 1From external nostrils up to the alveolifalse
- 2From external nostrils to terminal bronchiolesfalse
- 3From trachea to terminal bronchiolesfalse
- 4Alveoli and their ductstrue
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Answer : 4. "Alveoli and their ducts "
Q: When there is a cut in your finger, excessive blood loss is prevented by clotting of blood helped by ___________.
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639c8499c7eb1b240b5f53df- 1Plasmafalse
- 2RBCfalse
- 3Plateletstrue
- 4WBCfalse
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Answer : 3. "Platelets"
Q: Due to which behavior of the barometer which measures the atmospheric pressure, "thunderstorm is coming" is predicted?
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63bd1eb174eba5069d47a5d9- 1the barometer reading rises slowlyfalse
- 2the barometer reading slowly goes downfalse
- 3barometer reading rises suddenlyfalse
- 4barometer reading rises suddenlytrue
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Answer : 4. "barometer reading rises suddenly"
Explanation :
A falling barometric pressure, detected by a barometer, signals an approaching thunderstorm. This drop indicates unstable atmospheric conditions, often preceding stormy weather. Meteorologists use barometric readings to predict thunderstorms, as the decrease in pressure signifies the likelihood of imminent weather disturbances and allows for timely weather warnings.
Q: In which direction does the rainbow always form?
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63bd2ac73d35cd0deed4520b- 1in front of the sunfalse
- 2on the opposite side of the suntrue
- 3in the north directionfalse
- 4None of thesefalse
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Answer : 2. "on the opposite side of the sun"
Q: Which is used to make synthetic fibers?
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63bd22e074eba5069d47d983- 1HClfalse
- 2Bleaching powderfalse
- 3chlorinefalse
- 4NaOHtrue
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Answer : 4. "NaOH"
Q: A copper disc has a circular hole in the center when the copper disc is heated then the diameter of the hole is-
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63bd205d3d35cd0deed357c8- 1will remain the samefalse
- 2will decreasetrue
- 3will increasefalse
- 4will depend on other factorsfalse
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Answer : 2. "will decrease"
Explanation :
When a copper disc with a circular hole in the center is heated, the diameter of the hole will generally increase. This phenomenon occurs due to the expansion of the copper material as it is heated. When a material is heated, its particles gain energy and move more vigorously, leading to an increase in volume, and consequently, an increase in the diameter of the hole and the entire disc. The exact amount of expansion would depend on factors such as the temperature increase and the material properties of copper.
Q: The increasing amount of carbon dioxide in the air is slowly raising, the temperture of the atmosphere, because it absorbs
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638de2e334f83f14728e1e14- 1The water vapour of the air and retains its heatfalse
- 2The ultraviolet part of the solar radiationfalse
- 3All the solar radiationsfalse
- 4The infrared part of the solar radiationtrue
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Answer : 4. "The infrared part of the solar radiation"
Q: Which part of the human body has the longest bone?
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63b6b6ee28c33f137b3b7db2- 1spinal cordfalse
- 2armfalse
- 3rib cagefalse
- 4thightrue
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Answer : 4. "thigh"
Explanation :
The longest bone in the human body is the femur, which is located in the thigh. The femur, or thigh bone, extends from the hip to the knee and is the largest and strongest bone in the human skeleton.