In a very low temperature which from the following will freeze at last?
- (A) Sea water
- (B) Canal water
- (C) River water
- (D) None of these
- (A) Sea water
Which of the following is the NEAREST planet to Earth?
- (A) Mercury
- (B) Venus
- (C) Mars
- (D) None of these
- (B) Venus
Which of the following is spread on icy roads to melt ice in cold countries?
- (A) Ammonia
- (B) Solid Carbon dioxide
- (C) Rock salt
- (D) None of these
- (C) Rock salt
How many average liters of blood does the human body have?
- (A) 3.6 liters
- (B) 4.6 liters
- (C) 5.6 liters
- (D) None of these
- (C) 5.6 liters
Which of the following statements is TRUE for “Sound”?
- (A) Speed cannot travel through gases
- (B) Sound cannot travel through a vacuum
- (C) Sound can travel through vacuum
- (D) All of these
- (B) Sound cannot travel through a vacuum
Bio-sensor is used for the detection of:
- (A) Blood glucose level
- (B) The blood pH value
- (C) Salinity in urine
- (D) None of these
- (A) Blood glucose level
The life span of red blood cells in the body is about:
- (A) 100 days
- (B) 80 days
- (C) 120 days
- (D) None of these
- (C) 120 days
Long-sight defect could be corrected by using:
- (A) Convex lens
- (B) Concave lens
- (C) Cylindrical lens
- (D) None of these
- (A) Convex lens
Very high frequency (VHF) has _______ wavelengths.
- (A) Shorter
- (B) Shortest
- (C) Longer
- (D) None of these
- (A) Shorter
The “Great Red Spot” is found on which of the following planets?
- (A) Saturn
- (B) Mars
- (C) Jupiter
- (D) None of these
- (C) Jupiter