Practice mode / Environmental Science He was the first scientist to prove that Planets move around the sun? A Option A: Archimedes B Option B: Galileo Galilei C Option C: John Kepler D Option D: None Correct answer B. Galileo Galilei Show answer Report a problem How we write and check questions
Question 01 / Environmental Science A body can escape the gravitational pull of the earth if it is thrown up with a velocity of? A Option A: 25 miles per sec B Option B: 60 miles per sec C Option C: 7 miles per sec D Option D: 10 miles per sec E Option E: None of these Correct answer C. 7 miles per sec Show answer Open question
Question 02 / Environmental Science The instrument which i specially design for recording earth quake wave is called seismograph which measure earth quake waves on a? A Option A: Diatonic scale B Option B: Fahrenheit Scale C Option C: Richter scale D Option D: Celsius Scale E Option E: None of these Correct answer C. Richter scale Show answer Open question
Question 03 / Environmental Science Cobalt is a material which is? A Option A: Strongly attracted by a magnet B Option B: Not attracted by a magnet C Option C: not a magnet D Option D: Weakly attracted by a magnet E Option E: None of these Correct answer A. Strongly attracted by a magnet Show answer Open question
Question 04 / Environmental Science In a railway track, two rails are joined end to end with a gap tin between them because? A Option A: Steel can be saved B Option B: Accidents due to contraction in winter can be avoided C Option C: Air gaps are necessary for bearing the weight of running train D Option D: Accidents due to expansion in summer can be avoided E Option E: All of these Correct answer D. Accidents due to expansion in summer can be avoided Show answer Open question
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