Australia is both a representative democracy and a constitutional monarchy.
Answer:
The amount of fuel used to heat and cool your home can be reduced by good insulation.
Answer:
Overexploitation of resources.
Explanation:
In this case it's overexploitation of natural resources, wich is a big problem nowadays. Using resources excessively results in damaged resources, that's called overexploitation.
Freedom of speech is a principle that supports the freedom of an individual or a community to articulate their opinions and ideas without fear of retaliation, censorship, or legal sanction. The term "freedom of expression" is sometimes used synonymously but includes any act of seeking, receiving, and imparting information or ideas, regardless of the medium used.