Advertisements
Advertisements
Question
Can you tell?
What is ‘green energy’?
Advertisements
Solution
The forms of energy which do not produce smoke and carbon gases such as carbon dioxide or carbon monoxide are known as green energy. Green energy is energy derived from renewable, environmentally friendly sources such as solar, wind, hydro, geothermal, and biomass. It produces little to no pollution and helps combat climate change.
RELATED QUESTIONS
On what basis would you classify energy sources as
(a) renewable and non-renewable?
(b) exhaustible and inexhaustible?
Are the options given in (a) and (b) the same?
Fill in the following blank with a suitable word:
The amount of heat produce by burning a unit mass of a fuel completely is known as its ............ value.
State any four characteristics of a good source of energy.
A good fuel is one which possesses:
(a) high calorific value and low ignition temperature
(b) high calorific value and high ignition temperature
(c) high calorific value and moderate ignition temperature
(d) low calorific value and moderate ignition temperature
Write a short note on the pollution caused by burning fossil fuels.
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 gravitational pull of the moon cause the sea-water to rise periodically.
(a) What name is given to the condition of the sea when water to rise periodically.
(b) What name is given to the condition of the sea when its raised water recedes?
(c) What name is given to the energy which can be harnessed from this natural phenomenon?
(d) Draw labelled diagram to show how this energy can be harnessed from this natural
The world's known coal reserves are expected to last for about:
(a) 200 years
(b) 400 years
(c) 500 years
(d) 100 years
Tidal energy is ______ type of energy.
Write True/False against the following statement.
Oxygen in air is an exhaustible natural resource.
