Question

Tomorrow I have test give the correct answer . if given wrong answer I report you. mind it​

Answer 1

Answer:

Yes, one can find the diameter of thin wire using a ruler.

For this you need,

1) A ruler

2)A pencil

3)The wire.

Now follow the steps :-

1. Take the wire and bind it around the pencil.
2. Count the number of turns in the given length, that is, 2m.
3. Compress the wire and measure it against the scale.
4. See the length in the ruler and divide the length by the number of turns to get the thickness of the wire.

But since the diameter of a thin wire is very small and cannot be measured in cm.  The appropriate measurement instrument to use is a micrometer screw gauge.  It is an instrument used for measuring accurately the diameter of a thin wire or the thickness of a metal sheet.  It has its main scale reading in mm and the highest reading being 0.5mm.  It is further divided into hundredths of millimeters to accommodate a variety of smaller readings.

Answer 2

Answer:

the earth, together with all of its countries and peoples.

"he was doing his bit to save the world"

Similar:

earth

globe

planet

sphere

2.

a particular region or group of countries.

"the English-speaking world