The _______ is used to mark the compressed bundles of cotton or cloth so as to occupy less space.

You may have seen the trick where a tablecloth is jerked from a table, leaving the dishes that were on the cloth nearly in their original positions. What do you need to perform this successfully? Which cloth should we use? Is it cloth made of thick cotton or thin silk? Should the dishes possess large mass or small mass? Is it better to pull the cloth with a large force or pull it with a gentle and steady force?

------ is made os sugar molecules and is the main component of cotton used in clothing.

Assertion : Compressed natural gas (CNG) is natural gas under pressure and mainly composed of methane. Reason : One of the advantages of using CNG as a fuel in automobiles is that it requires very less space for storage as compared to that of petrol or diesel.

Take three different colour sheets , place one over the other and draw a triangle on the top sheet. Cut the sheets to get triangles of different colour which are identical. Mark the vertices and the angles as shown. Place the interior angles angle1,angle2 and angle3 on a straight line, adjacent to each other, without leaving any gap. What can you say about the total measure of the three angles angle1,angle2 and angle3 ? Can you use the same figure to explain the ''Exterior angle property'' of a triangle ? If a side of a triangle is stretched, the exterior angle so formed is equal to the sum of the two remote interior angles.

Assertion and Reason. Mark the correct choice as:Assertion :Radiation is a process of trasfer of heat in which a material medium is not necessary. Reason : The heat from the sun reaches us through millions of miles of empty space by convection.

Find the total number of nine-digit numbers that can be formed using the digits 2, 2, 3, 3, 5, 5, 8, 8, 8 so that the odd digit occupy the even places.