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Ameeta ties four strings made of different materials to a wall.
She then pulls each string until it breaks.
The arrow shows the direction of the force.


The table shows the amount of force needed to break each string.

String	Amount of force needed to break the string (Newton)
String $1$	$10$
String $2$	$2$
String $3$	$14$
String $4$	$4$

$1.$ Draw the bars in the graph below to show the observations of Ameeta’s activity.
Fill in the dotted columns to show the correct values along the $Y- $axis.

$2.$ Which string is made of the strongest ibre$?$
$A.$ String $1$
$B.$ String $2$
$C.$ String $3$
$D.$ String $4$
$3.$ What must Ameeta keep the same in her activity$?$
$A.$ Colour of the strings
$B.$ Length of the strings
$C.$ Thickness of the strings
$D.$ Height of the strings from ground
$4.$ Which of the following statements is/are true about polymers$?$
Circle ‘Yes’ or ‘No’ to mark your response.

Is the statement correct?	Yes or No
All synthetic ibres are polymers.	Yes/No
Some natural ibres are polymers.	Yes/No
Polymers are made of multiple small chemical units.	Yes/No