B. converging lens

C. none of these

D. convex lens

B. None of These

C. Protons

D. Neutrons

A. none

B. Globulins

D. Calcium ions

A. Activator

B. Super catalyst

C. Retarder

A. Gravitational pull

B. Age

D. Density

A. Refraction of light

B. Diffraction of light

C. Reflection of light

B. vitamin C

C. vitamin E

D. vitamin K

A. Air

B. Water

D. Vibrations

A. James Maxwell

B. Yuri Gagarin

C. Michael Faraday

A. none

B. Fibrocartilage

D. Articular cartilage

A. 48

B. 35

D. 12

A. The sun-month long day

C. The longest day

D. The shortest day

A. osmosis

B. desiccation

C. efflorescence

A. Hunds rule

C. Periodic law

D. Aufbau principle

A. Air

B. Soil and water

D. Organisms

A. Earth is revolving round its axis

B. Planet Mars is attracting the sun

D. Moon is revolving round the earth

A. Scientific work must be precise, accuracy is not essential

B. Calculations must be made before any experiment

C. Scientific work must be accurate, precision is not essential

A. Dark matter

C. Moon spots

D. Maria, or seas, because they are filled with water

A. An anticyclone

B. A warm front

D. A cold front

B. Conductors

C. None of these

D. Diodes

B. The land surface

C. The earth

D. The ionosphere

B. Liquid

C. Solid

D. Gases

B. to control body temperature

C. to help in digestion of bady

D. to control blood pressure

A. a precision pendulum clock

C. the frequency of light emitted by Kr86

D. the daily rotation of the earth

E. the yearly revolution of the earth about the sun

A. None of these

C. Kinetic energy

D. Electrical energy

A. It contains 85-90% of the atmospheres mass

B. It is the zone which exhibits changes in condition of weather

C. It contains nearly all the water and oxygen of the atmosphere

A. 15 hours

C. 1 hours

D. 5 hours

A. 58.9 million km

C. 56 million km

D. 59.1 million

A. Cardiac muscles

B. none

D. Smooth muscles

A. Quasar

C. Red giant

D. Black hole

A. oxygenated blood

C. lymph fluid

D. atria blood

A. Pupal

B. Cornea

C. Retina

A. its acceleration multiplied by the time interval

B. the magnitude of its average velocity over the interval

C. one-half its speed at the end of the interval

D. one-half its acceleration multiplied by the time interval

B. Evaporation takes place

C. The temperature rise

D. It rains

B. Composite

C. Malvaceae

D. Rotaceae

A. 12 Lakh kms

B. 13 Lakh kms

D. 15 Lakh kms

B. Troposphere

C. Thermosphere

D. Mesosphere

B. Waterlogged

C. Acidic

D. Soil with excessive clay content

A. It increases the supply of oxygen to the flame by convection

B. The heat produced ensures complete

D. Neither of these

A. 80%Nitrogen, 20% Hydrogen

B. None

D. 90% Hydrogen, 10% Nitrogen

B. May

C. None

D. December

A. Simple Conductor

B. None of these

C. Impure-Conductor

B. Kitchen utilities

C. Children toys

D. Brick kilns

B. Prop him up if he falls

C. Add extra weight to keep the rope tightly stretched

D. Spread out his weight and reduce the pressure on the rope

A. Lens

C. Retina

D. Iris

A. White Dwarfs Star

C. Pulsars Star

D. Quasars Star

A. None

C. Bacteria

D. Protozoa

A. Immunology

B. none

C. Paracitology

B. K

C. B

D. E

B. A.Rose

C. steward Harshone

D. Charles Goodbye