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What does 75% refer to?
75% od the carbon dioxide that pollutes the atmosphere and problems and cause problems such as global warming.
What does 70% refers to?
70% of the energy used around the world is used in cities.
What is sustainable development?
Sustainable development refers to the growth of the population and economy in a way whcich will not lead to the destruction of the environment in the future.
Characteristics of green buildings
They use renewable energy, such as solar energy. They often have green roofs wich are covered with vegetation. They often collect rainwater.
How can we save energy?
Use energy saving light bulbs, turn your refrigerator down, use your washing machine and diswasher when they are full, use clean transport,
What are green roofs?
Roofs covered with vegetation to control the amount of heat that escapes from the building. They also collect water.
Say the characteristics of green buildings.
They use renewable energy sources(such as solar energy), they are built to save energy and reduce waste. They often have green roofs and collect rainwater.
What are green buildings?
Buildings that consume less energy to take care the environment. they re designed to save energy.
What is sustainable development?
It is a way for people to use resources without the resources running out. ...
What are the trhe Rs?
Reduce, reuse and recycle.
What sources of energy can we use to get electricity to protect our planet?
Renewable energy sources such as wind, water and solar energy.
Explain how the acid rain is produced.
Water in the atmosphere dissolves polluting gases producing acids. Whe it rains, the acidic droplets fall to the ground
Why is the global warming caused?
Because the extra carbon dioxide in the atmosphere traps heat from the Earth, and it's becoming warmer every year.
Name the effects of global warming.
The Earth is becoming warmer every year. The glaciers are melting and may produce flood. Extreme weather such as tornados, blizzards and droughts.
What causes acid rain?
nitrogen oxyde (polluting gases mix with the droplets of rain)
What causes global waming?
The extra carbon dioxide in the atmosphere.


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