Advertisements
Advertisements
प्रश्न
Fill in the following blank with suitable word:
Tidal waves build up and recede ........... a day.
उत्तर
Tidal waves build up and recede twice a day.
APPEARS IN
संबंधित प्रश्न
A substance X is added to LPG cylinders while filling so as to make the detection of leakage of LPG from the cylinder easy.
How does substance X make the detection of leakage of LPG easy?
Most of the sources of energy that we sue represent stored solar energy. Which of the following is not ultimately derived from the sun's energy?
(a) wind energy
(b) geothermal energy
(c) fossil fuels
(d) biomass
The non-renewable source of energy among the following is:
(a) hydroelectricity
(b) sewage gas
(c) natural gas
(d) gobar gas
When the material A mined from the earth is heated strongly in an insufficient supply of air, it produces a solid fuel B which consists mainly of carbon. When another material C obtained from trees is heated in an insufficient supply of air, it produces another solid fuel D which also consists mainly of carbon. Name A, B, C and D
Which of the two is more energy efficient: filament type electric bulb or CFL? Why?
State whether the following is True or False.
Renewable energy resources have limited supply in nature.
What are fossil fuels?
Who is the odd one out?
Higher Order Thinking Skill (HOT)
What are the objectives for replacing non-conventional energy resources from conventional energy resources?
Write True/False against the following statement.
Oxygen in air is an exhaustible natural resource.
