The most important stimulant in tea leaves is?
The most important stimulant in tea leaves is?
A. Brucine
B. Caffeine
C. Phenylalanine
D. Theine
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“Plague” is a disease, spread by?A. Cow
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C. Rat
D. DogWhich law states that “equal volumes of all gases, at the same temperature and pressure, have the same number of molecules?
Which law states that “equal volumes of all gases, at the same temperature and pressure, have the same number of molecules?A. Boyle’s law
B. Charles’ law
C. Gay-Lussac’s law
D. Avogadro’s lawWhich woody raw material is used for the manufacture of paper pulp?
Which woody raw material is used for the manufacture of paper pulp?
A. Cotton
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C. Bagasse
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Which lenses are used by people having short-sightedness?A. Convex
B. Concave
C. Concavo-convex
D. PlainOne of the following countries produces maximum energy from atomic reactors?
One of the following countries produces maximum energy from atomic reactors?A. France
B. USA
C. UK
D. none
Other countries have significant amounts of nuclear power generation capacity. By far the largest nuclear electricity producers are the United States with 808,028 GWh of nuclear electricity in 2019, followed by France with 395,908 GWh.Which is the nearest star to our sun?
Which is the nearest star to our sun?
A. Proxima Centurai
B. Alpha Scorpii
C. Beta Orionis
D. Vega