Which of the following is caused by a deficiency of iron in the diet?
Which of the following is caused by a deficiency of iron in the diet?
A. Giotre
B. Scurvy
C. Anaemia
D. Rickets
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Second ionization energy:
Second ionization energy:
A. is always less than first ionization energy
B. is always greater than first ionization energy
C. is equal to the first ionization energy
D. may be greater or less than the first ionization energy depending on the nature of the elementThe distance between the optical centre of a convex lens and its principal focus is called its_______?
The distance between the optical centre of a convex lens and its principal focus is called its_______?A. Focal Length
B. Radius of Curvature
C. Power
D. MagnificationThe distance between the optical centre and principal focus of a lens is called focal length. Focal length of a lens depends on the refractive index of the glass and its curvature.
An average human heart beats about time in a minute?
An average human heart beats about time in a minute?A. 72 times
B. 85 times
C. 90 times
D. 120 timesEquator passes through one of these countries___________?
Equator passes through one of these countries___________?
A. Saudi Arabia
B. Italy
C. Japan
D. NoneThe equator passes through 13 countries: Ecuador, Colombia, Brazil, Sao Tome & Principe, Gabon, Republic of the Congo, Democratic Republic of the Congo, Uganda, Kenya, Somalia, Maldives, Indonesia and Kiribati.
The primary function of the feathers in birds is to _________?
The primary function of the feathers in birds is to _________?A. Provide insulation for preserving body heat
B. Provide striking surface to the wings for flying
C. Make the body surface waterproof
D. impart coloration for species as well as sex recognitionInsects responsible for transmitting diseases are called___________?
Insects responsible for transmitting diseases are called___________?A. Drones
B. Vectors
C. Hybirds
D. None of these