Short_sight defect could be corrected by a _____________ lens
(A) concave lens
(B) convex lens
(C) converging lens
(D) none of these
Reflex actions in head region are under the control of___________
(A) Brain
(B) Spinal cord
(C) both a & b
(D) non of the above
The repetition of property after a certain interval called ___________
(A) Electron efinity
(B) Atomic radius
(C) periodicity of property
(D) none of these
The distance of mercury from sun is__________
(A) 56 million km
(B) 57.9 million km
(C) 58.9 million km
(D) 59.1 million
Which of the following cells are Colourless
(A) Red blood cells
(B) White blood cells
(C) Monocytes
(D) platelets
Which among the following is the correct sequence of the various layers of the Atmosphere from the Earth’s surface
(A) Ionosphere, Mesosphere, Stratosphere, Troposphere
(B) Mesosphere, Stratosphere, Ionosphere, Troposphere
(C) Troposphere, Stratosphere, Mesosphere, Ionosphere
(D) Troposphere, Ionosphere, Stratosphere, Mesosphere
What is the breathing rate of human being body
(A) 15-11 minutes
(B) 16-20 minutes
(C) 25-26 minutes
(D) 32-35 minutes