What a si unit and how would you measure a fence the length of the fence

Explanation:

Scientists worldwide try to use the same unit to measure the same quantity so as to make communication simpler. Most scientific measurements prefers the International System of Units called the SI unit as the standard for recording measurements.

Some of the units are listed below:

QUANTITY UNIT

Length metre

Mass kilogram

Time second

To measure the length of a fence:

The length shows how long a body is and it is sometimes a measure of distance.

The length of a fence is obtained by the use of a measuring tape which is graduated in meters. To measure a short distance fence, a metre rule is used.

a. european colonies

b. 20: 5

explanation:

20% of the worlds population lives in southwest asia, and less than 5% of the world's

land area.