Who is the founder of solar system?
Who is the founder of solar system?A. Copernicus
B. Newton
C. Galileo
D. Kepler
B. Newton
C. Galileo
D. Kepler
A. Aluminium
B. Selenium
C. Barium
D. None of these
The variety of coal in which the deposit contains recognizable traces of the original plant material is____________?
A. bitumen
B. anthracite
C. lignite
D. peat
A. Oxygen
B. Silicon
C. Carbon
D. Hydrogen
A. Iodine
B. Potassium
C. Sodium Chloride
D. Chlorine
When oil and gas resources are burnt they kill many forests and lakes by ________________ ?
A. deforestation
B. water pollution
C. acid rain
D. forest fire