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What is the impact of fuel burnt for transport or thermal power stations on the earth?
It produces gases and ash which pollute the air, increasing CO2 in the atmosphere and contributing to global warming
What is recovery?
Restoring something in bad condition to make it useful again, like making organic waste into compost for gardens
What are the 4 Rs of saving energy?
Reduce, reuse, recycle, recovery
What is sustainable development? Give an example
How we reduce our environmental impact and waste production in order to respect our environment and allow future generations to live on Earth!
What is the term for carrying electric energy from one place to another?
transport
What is transformation?
The way different types of energy are changed to create electrical energy
What type of energy do waves and tides have?
Kinetic energy
What is the difference betwen renewable and non-renewable energy?
Renewable energy sources can regenerate after they are used, but non-renewable sources are limited.
Rocks and water in volcanic areas have lots of what type of energy?
Thermal energy
Whatis BIOMASS?
fuel-material that comes from organic waste
What happens when we burn BIOMASS?
It transforms into heat energy
What radioactive materials can be used at nuclear power stations?
Uranium and plutonium
The sun generates ____ and ____ energy, which can be converted into ____ energy
light and heat; electric
We can use kinetic energy from ____ and ____ to produce electric energy
water reservoirs and wind farms
Where does natural gas come from? What is it used for?
It comes from underground reservoirs and is used for heat or hot water
How do we use coal?
For electricity and heat
When fuels burn, they turn ___ energy into ____ energy
thermal, chemical
What is nuclear energy?
Nuclear energy comes from nuclear centers and is generated from some chemical elements (like plutonium)
What is sound energy?
energy produced by objects (like musical instruments)
What is light energy?
energy produced by objects that release light (like the sun)
What are mechanical and kinetic energy?
energy of moving objects; depends on the speed and volume of objects (like moving vehicles)
What is thermal energy?
A form of energy that some objects release when active (like the sun)