A rule which is accepted but not written down in law. For example: Let people get out of the lift before you walk in.
15
Culture shock
Experiencing a shock at the way people live in another country (culture).
15
Comical
funny
15
Congestion
traffic not moving and blocking roads which causes traffic jams. Also, you can have a congested nose which means you can't breathe properly.
15
Conserve
Protect and secure something (animal or environment) from destruction or extinction.
15
Drab
dull and boring.
15
Biodegradable
A substance or object which is capable of being decomposed by bacteria or other living organisms and thereby avoiding pollution.
15
Implication
The conclusion that can be drawn from something although it is not clearly stated.
"The implication is that no one person at the bank is responsible"
15
Administration
The process or activity of running a business, organization, etc.
"The day-to-day administration of the company"
15
Emission
The production and discharge of something, especially gas or radiation.
"The effect on people's health by car emissions."
15
Global Warming
A gradual increase in the overall temperature of the earth's atmosphere generally attributed to the greenhouse effect caused by high levels of carbon dioxide.
15
Climate change
Changing weather patterns.
15
Satellite
An object that orbits the earth and collects and transmits information.
15
implementation
to begin something
The implementation of the plan has begun.
15
Greenhouse gases
The gases that form a layer in the atmosphere which stops heat leaving the earth and so contributes to global warming.