Uphill journey makes the man bend forward to ensure:
- (A) High speed
- (B) Stability
- (C) Avoiding fatigue
- (D) Avoiding the beasts
- (B) Stability
Odor (smell) is a component of the cooking gas. It is:
- (A) Natural
- (B) Added during excavation
- (C) Sometime natural
- (D) Sometimes artificial
- (B) Added during excavation
Food is cooked quickly in a pressure cooker because:
- (A) Boiling point of water is decreased
- (B) Boiling point of water is increased
- (C) It absorbs heat quickly
- (D) It retains heat for a long duration
- (B) Boiling point of water is increased
A plant with green leaves placed in red light will appear:
- (A) Black
- (B) Blue
- (C) Red
- (D) Green
- (A) Black
The primary function of the feathers in birds is to:
- (A) Provide striking surface to the wings for fly
- (B) Make the body surface water proof
- (C) Provide insulation for preserving body heat
- (D) Impart coloration for species as well as sex recognition
- (A) Provide striking surface to the wings for fly
If all the plants of the world die, all the animals will also die due to shortage of:
- (A) Shelter
- (B) Cold air
- (C) Food
- (D) Oxygen
- (D) Oxygen
By mixing all the colors of visible spectrum of sunlight, we produce:
- (A) Purple light
- (B) Green light
- (C) White light
- (D) Infrared light
- (C) White light
Cloudy nights are warmer because:
- (A) Clouds prevent radiation of heat from ground to air
- (B) Of low atmospheric pressure
- (C) Of the compact density of air
- (D) More dust particles gather in the air
- (A) Clouds prevent radiation of heat from ground to air
A bubble of soap solution shows brighter when viewed in sunlight due to _______ of light.
- (A) Reflection
- (B) Dispersion
- (C) Refraction
- (D) Polarization
- (B) Dispersion
A red light is used in traffic signal because:
- (A) It can be easily noticed from a long distance
- (B) It has the shortest wavelength
- (C) It is beautiful looking
- (D) It is visible to people even with bad eyesight
- (A) It can be easily noticed from a long distance