First, boiling is the change of state from a liquid to a gas. Second, boiling of a pure substance occurs at a particular constant temperature called boiling point.
First, the change of state from a gas to a liquid is called condensation. Second, a pure substance condenses at a temperature equal to its boiling point.
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A topographic map displays sea level readings for different locations.
ex. color shows depth
Answer:
Brazil is a South-American country that has political independence from the 19th Century.
Explanation:
Brazil was a Portuguese colony until 19th Century when it gained political and economical independence. It is today one of the leading economies in the region that has democratic leadership, that is independent towards every other country. Political independence of the country is the main reason why we can discuss about Brazil as an independent country.
An acute angle is less than 90 degree ;)
Answer:
The hybrid cars
Explanation:
It reduce the carbon emissions because it use other types of energy such as calorific when the car brakes friction is created and the car motor serves as a converter to electrical energy to take them to the car batteries and put it to use
