The ozone layer is at height of________kilometers from the surface of the Earth?
The ozone layer is at height of________kilometers from the surface of the Earth?
A. 10 to 20
B. 20 to 30
C. 30 to 40
D. 40 to 50
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A seed can germinate in the absence of__________?
A seed can germinate in the absence of__________?A. Oxygen
B. Light
C. Moisture
D. TemperatureThe most abundant element in human body is __________?
The most abundant element in human body is __________?A. Hydrogen
B. Blood
C. Oxygen
D. ProteinAt what angle above the horizon must the sun be to create a rainbow?
At what angle above the horizon must the sun be to create a rainbow?
A. 90 degrees
B. 60 degrees
C. 40 degrees
D. 65 degreesTriple point of water is _________?
Triple point of water is _________?A. 271 K
B. 272.2 K
C. 273.16 K
D. None of theseThe SI unit of electric current is?
The SI unit of electric current is?A. Coloumb
B. Ampere
C. Volt
D. WattFrederick Sanger is a twice recipient of the Nobel Prize for ________?
Frederick Sanger is a twice recipient of the Nobel Prize for ________?A. Physics in 1956 and 1972
B. Chemistry in 1958 and 1980
C. Physics in 1903 and Chemistry in 1911
D. Chemistry in 1954 and Peace in 1962