7. Write True or False against each statementPlastic is non-reactisShawls and blanks can be made of synthetic fibres called AcrylicBakelite is a weed conductor of heat and electricity.iv) Materials andere plasticare environment friendly8. Categorise the following i Bio-degradable and non-biodegradable,Teflon, Wood Paper, Plaste bags, Cotton clothes, Dúng, peels of vegetables and fruits.Bio-degrableNon-BiodegradableSCERTFill in the blanks:a) The property of metals by which they can be beaten into sheets is calledThe Property of metals by which they can be drawn into wires is calledc) Metals produce ringing sounds, they are said to bed) Non-metal is essential for life which all living thing inhale during breathing is10. Match Column A to Column BА AВMagnesium oxideStored in keroseneGoldLiquid at room temperatureSodiumJewelleryMercuryBasic11. Write three uses of metals and three uses of non-metals.MetalsNon-metals​