Practice FPSC General Knowledge questions with answers and explanations.
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Mercury is the innermost planet of the Solar System.
It completes an orbit faster than any other planet.
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Iron is a key component of hemoglobin.
Insufficient iron can lead to iron-deficiency anemia.
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Specialized cells in the pancreas produce insulin.
Insulin helps regulate blood glucose.
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Plants use carbon dioxide and water to make glucose during photosynthesis.
Oxygen is released as a by-product.
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Chlorophyll absorbs light energy for photosynthesis.
It gives most plant leaves their green color.
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Mitochondria produce much of the cell's usable energy as ATP.
They are therefore called the powerhouse of the cell.
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Roots anchor the plant and absorb water and minerals.
Root hairs increase the absorbing surface.
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Transpiration is the loss of water vapor through plant surfaces.
Most of it occurs through leaf stomata.
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Nitrogen makes up about 78% of Earth's atmosphere.
Oxygen is the second-most abundant gas.
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Most atmospheric ozone is concentrated in the stratosphere.
It absorbs much of the Sun's harmful ultraviolet radiation.
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A water molecule contains two hydrogen atoms and one oxygen atom.
Its formula is H₂O.
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The Second World War began in Europe in September 1939.
Germany's invasion of Poland triggered declarations of war.
