General Science Questions Practice Question and Answer
8Q: Reflex actions are controlled by 1389 05b5cc69ee4d2b4197774c985
5b5cc69ee4d2b4197774c985- 1the Brainfalse
- 2the Spinal Chordtrue
- 3the Nervesfalse
- 4the Cellsfalse
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Answer : 2. "the Spinal Chord "
Explanation :
Answer: B) The Spinal Chord Explanation: A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the brain.
Q: Natural rubber is a polymer derived from ? 1154 05c2dbf1cf11ee42b64688fd0
5c2dbf1cf11ee42b64688fd0- 1ethylenefalse
- 2propylenefalse
- 3isoprenetrue
- 4butadienefalse
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Answer : 3. "isoprene"
Q: Isotopes are atoms of the same element that have different 1183 05b5cc5ffe4d2b4197774b43b
5b5cc5ffe4d2b4197774b43b- 1numbers of neutronstrue
- 2numbers of electronsfalse
- 3numbers of protonsfalse
- 4atomic numbersfalse
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Answer : 1. "numbers of neutrons"
Explanation :
Answer: A) numbers of neutrons Explanation: Isotopes are variations of an element that have the same charge as the original element, but a different mass, which is caused by either more/less neutrons in the nucleus.
Q: Plants growing in sunlight are called 1487 05b5cc798e4d2b4197775049f
5b5cc798e4d2b4197775049f- 1sciophytesfalse
- 2xerophytesfalse
- 3heliophytestrue
- 4hydrophytesfalse
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Answer : 3. "heliophytes"
Explanation :
Answer: C) heliophytes Explanation:
Q: Which of the following is an air pollutant? 1156 05b5cc5ffe4d2b4197774b3ef
5b5cc5ffe4d2b4197774b3ef- 1Sulphur dioxidetrue
- 2Ozonefalse
- 3Water vapourfalse
- 4Nitric oxidefalse
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Answer : 1. "Sulphur dioxide"
Explanation :
Answer: A) Sulphur dioxide Explanation: Air pollutants are solid particles, gases, and liquid droplets in the air that can adversely affect ecosystems and the health of humans. Major ambient air pollutants include toxic metals, polycyclic aromatic hydrocarbons, benzene, particulate matter (PM), nitrogen oxides, sulfur oxides, carbon monoxide, and ozone. Power plants, factories, and vehicle and air traffic are the most important anthropogenic sources of air pollution. In addition, natural sources such as wildfires and volcanic activity contribute to ambient air pollution.
Q: Which of the following statements about water is false? 1689 05b5cc601e4d2b4197774b462
5b5cc601e4d2b4197774b462- 1There is extensive intramolecular hydrogen bonding in the condensed phase.true
- 2Water is oxidized to oxygen during photosynthesis.false
- 3Ice formed by heavy water sinks in normal water.false
- 4Water can act both as an acid and as a base.false
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Answer : 1. "There is extensive intramolecular hydrogen bonding in the condensed phase."
Explanation :
Answer: A) There is extensive intramolecular hydrogen bonding in the condensed phase. Explanation: Water possess intermolecular hydrogen bonding in the condensed phase. Hence, the given statement 'There is extensive intramolecular hydrogen bonding in the condensed phase.' about water is FALSE.
Q: Which of the following does not influence haemoglobin saturation? 1056 05b5cc695e4d2b4197774c4f1
5b5cc695e4d2b4197774c4f1- 1Nitric oxidetrue
- 2Carbon dioxidefalse
- 3Temperaturefalse
- 4DPGfalse
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Answer : 1. "Nitric oxide"
Explanation :
Answer: A) Nitric oxide Explanation:
Q: Who is regarded as father of modern chemistry ? 1461 05c2dbb7eaea81766da94cac5
5c2dbb7eaea81766da94cac5- 1Ruterfordfalse
- 2Einsteinfalse
- 3Lavoisiertrue
- 4C V Ramanfalse
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