Question 621 The orbit along which the earth is approximately? A) Irregular B) Elliptical C) Circular D) Rectangular No Details
Question 624 The metal whose salts are sensitive to light is ? A) Silver B) Zinc C) Copper D) Gold No Details
Question 625 Which one among the following radiations carries maximum energy? A) Ultraviolet rays B) Gamma rays C) X- rays D) Infra red rays No Details
Question 626 Which of the following is used in pencils? A) Graphite B) Silicon C) Charcoal D) Phosphorous No Details
Question 627 The tree sends down roots from its branches to the soil is know as ? A) Oak B) Pine C) Banyan D) Palm No Details
Question 628 Which metal pollute the air of a big city? A) Copper B) Chromium C) Lead D) Cadmium No Details
Question 629 Decibel is the unit for ? A) Speed of light B) Radio wave frequency C) Intensity of sound D) Intensity of heat No Details
Question 630 .Reading of a barometer going down is an indication of ? A) Snow B) Storm C) Intense heat D) Rainfall No Details