Approximate age of sun is _________?
Approximate age of sun is _________?
A. 4.4 billion years
B. 4.5 billion years
C. 4.6 billion years
D. 4.7 billion years
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Sum of all ecosystems is classified as___________?
Sum of all ecosystems is classified as___________?
A. Aero sphere
B. Ionosphere
C. Biosphere
D. OzonosphereAviation fuel for Jet Aeroplanes consists of purified________?
Aviation fuel for Jet Aeroplanes consists of purified________?A. Petrol
B. Kerosene
C. Gasoline
D. DieselVirus is__________?
Virus is__________?A. unicellular
B. multicellular
C. acellular
D. none of theseViruses are nor unicellular neither multicellular the are acellular organisms means without cell configuration. Actually they are only made up of nucleic acid and proteins. Viruses are acellular biological entities made up of nucleic acid and proteins. The nucleic acid is either DNA or RNA; both are never found together in a virus. Thus viruses are neither unicellular nor multicellular.
The Shortest air route from Moscow to San Francisco is?
The Shortest air route from Moscow to San Francisco is?A. Over the South Pole
B. Over the North Pole
C. Over the Atlantic Ocean
D. None of the aboveDeficiency of __________ causes loss of appetite and poor growth?
Deficiency of __________ causes loss of appetite and poor growth?A. zinc
B. iodine
C. copper
D. ironWind always blows from area of ________?
Wind always blows from area of ________?A. Low pressure to high pressure
B. High pressure to low pressure
C. Only low pressure
D. Only high pressure