Thousands of mirrors or curved metals are used to focus solar energy to make it very hot, in
A. solar cells
B. solar heater
C. solar furnace
D. solar battery
Related Questions on Chapter 8: Energy Resources - Science Mcqs for Grade 7
Hot water or steam carrying geothermal energy often comes up to surface in
A. New Zealand
B. Ice land
C. Germany
D. both a and b
Fossils fuel is an important source of energy for
A. transport
B. homes
C. industries
D. all of them
When animals and plants are rotten in the absence of air, there produces a gas called
A. oxygen
B. carbon dioxide
C. bio gas
D. methane