An adult have permanent teeth?
An adult have permanent teeth?
A. 30
B. 40
C. 50
D. 32
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A dolphin perceives its environment by the sense of__________?
A dolphin perceives its environment by the sense of__________?A. Sight
B. Sound
C. Both of these
D. None of theseWhich is the only planet that rotates clockwise?
Which is the only planet that rotates clockwise?A. Jupiter
B. Venus
C. Earth
D. Mercury______________ is used for measuring velocity?
______________ is used for measuring velocity?
A. Speedometer
B. Anemometer
C. Odometer
D. HygrometerWhich instrument is used to measure the power of electric circuit ?
Which instrument is used to measure the power of electric circuit ?A. Wavemeter
B. Viscometer
C. Wattmeter
D. None of theseA wattmeter is an electrical instrument which is used to measure the electric power (in watts) of any electrical circuit.
Voltmeter – is used to measure electric potential difference between two points,
Wavemeter – is used to measure the wavelength of a radiowave,
Viscometer – is used measure viscosity of liquid.Which of the following is good conductor of heat but bad conduct of electricity?
Which of the following is good conductor of heat but bad conduct of electricity?A. Aluminium
B. Titanium
C. Abestos
D. MicaBlood is cleaned by __________?
Blood is cleaned by __________?A. Lungs
B. Liver
C. Heart
D. Kidneys
The kidneys act as filters for your body. Their job is to remove toxins or waste products from your blood. If toxins build up in your blood, you will eventually die.
Other jobs performed by the kidneys:
They keep the right amount of water in the body. They balance vitamins and minerals including sodium potassium and phosphorus. They make sure the acid level in the blood is correct. Your kidneys also help control your blood pressure. Blood is cleaned by kidneys