Sources of energy Worksheet-2
A. Coal B. Petroleum C. Sun D. Natural gas
A. 75% B. 47% C. 15% D. 100%
A. 1/2 B. 1/3 C. 1/4 D. 2/3
A. ultra-violet radiation B. infra-red radiation
C. visible radiation D. entire solar radiation
A. 100% B. 90% C. 60% D. 25%.
A. 1950 B. 1970 C. 1962 D. 1980
A. high ignition temperature
B. high calorific value
C. moderate ignition temperature
D. high calorific value and moderate ignition temperature
A. Lignite B. Bituminous
C. Anthracite D. Peat
A. butane B. methane C. hydrogen D. oxygen
A. methane B. ethane
C. butane D. liquid hydrogen.
Answer Key: