Which of the following is not a mammal?
Which of the following is not a mammal?
A. Fish
B. Cow
C. Goat
D. Whale
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Which of the following is a positively charged particle emitted by a radioactive element?
Which of the following is a positively charged particle emitted by a radioactive element?A. Beta Rays
B. Alpha Rays
C. Gamma Rays
D. None of theseMain use of salt in diet is to : ___________?
Main use of salt in diet is to : ___________?A. ease the process of cooking
B. increase the taste
C. produce small amount of hydrochloric acid required for digestion
D. inclease solubility of food particles in waterApproximate age of moon is _________?
Approximate age of moon is _________?
A. 4.51 billion years
B. 4.55 billion years
C. 4.53 billion years
D. 4.57 billion yearsEach day human body breathe in __________ liters of air.
Each day human body breathe in __________ liters of air.A. 5,000 to 10,000
B. 10,000 to 15,000
C. 15,000 to 20,000
D. 20,000 to 25,000
The average adult at rest inhales and exhales something like 7 or 8 liters (about one-fourth of a cubic foot) of air per minute. That totals something like 11,000 liters of air (388 cubic feet) in a day.
The air that is inhaled is about 20-percent oxygen, and the air that is exhaled is about 15-percent oxygen, so about 5-percent of the volume of air is consumed in each breath and converted to carbon dioxide. Therefore, a human being uses about 550 liters of pure oxygen (19 cubic feet) per day.The device used to convert Alternate Current into Direct Current is called?
The device used to convert Alternate Current into Direct Current is called?A. Anemometer
B. Battery
C. Galvanometer
D. Rectifier“Gastric juice” is a secretion of the glands present in________?
“Gastric juice” is a secretion of the glands present in________?A. Gall Bladder
B. Kidneys
C. Stomach
D. None of theseGastric gland, any of the branched tubules in the inner lining of the stomach that secrete gastric juice and protective mucus.