Which of the following invention is oldest ?
Which of the following invention is oldest ?
A. Clock
B. Microscope
C. Barometer
D. Cycle
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Defeciency of following vitamin decreases hemoglobin production ?
Defeciency of following vitamin decreases hemoglobin production ?
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E. None of theseWhen was for the first time January 1st was Celebrated as a New Year?
When was for the first time January 1st was Celebrated as a New Year?A. 45 B.C
B. 50 B.C
C. 40 B.C
D. 35 B.CIn 45 B.C., New Year’s Day is celebrated on January 1 for the first time in history as the Julian calendar takes effect. Soon after becoming Roman dictator, Julius Caesar decided that the traditional Roman calendar was in dire need of reform.
International Children’s Day is observed on ____________ ?
International Children’s Day is observed on ____________ ?A. 20 February
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C. 1st March
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What is Agrostology?A. Study of grasses
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Human rights day is celebrated on 10th December every year. In which year General Assembly of United Nations accepted the Universal Declaration of Human Rights?A. 1945
B. 1946
C. 1947
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Which one of the following wavelengths of light is most effective in photosynthesis?A. Blue
B. Green
C. Orange
D. Yellow