Question | Answer |
ANOTHER SOLUTION TO MAKE PLASTIC THAT ARE .... | EASILY BROKEN DOWN IN ENVIRONMENT. |
DISINTEGRATION OF PLASTIC CAUSED BY ... | LIGHT OR BY ORGANISMS IN LANDFILL SITES. THIS IS ACHIEVED BY ADDED STARCH GRANULE TO THE PLASTIC. |
HOW TO DISINTEGRATE PLASTICS ... | ADD STARCH GARNULE TO IT.BIODIPERSIBLE. |
WHAT DO THE MICROORGANISM BREAK DOWN IN THE PLASTICS ... THE STARCH, TURNS PLASTIC INTO FINE POWDER THUS TAKING UP LESS SPACE. CALLED BIODIPERSIBLE. | |
BIODEGRADABLE MEAN THAT... | BACTERIA CAUSE THE DECOMPOSITION OF ORGANIC MATERIAL TO C02 METHANE OR WATER. |
ARE METALS EASILY RECYCLED... | YES |
IRON CAN BE SEPARATED FROM OTHERS METAL BY USING.. | A MAGNET, THEN MIXED WITH AN IRON ORE MIXED IN A BLAST FURNACE. |
RECYCLED ALUMINIUM CAN ARE ... | MELTED DOWN REACTS SAVING ENERGY IN COMPARISON TO ELECTROLYSIS OF ALUMINA. |
THE EXTRACTION OF THE COSTLY METALS USED IN CATALYTIC CONVERTERS ARE ... | ECONOMICALLY VIABLE,AT SAME TIME |
PRESERVES NON RENEWABLE RESOURCES. | |
TO REDUCE POLLUTION GASSES AND WATER ... | RELEASED TO ENVIRONMENT & WATER RETURNED FROM FACTORIES |
ARE MONITORED. | |
TO REDUCE POLLUTION GASSES AND WATER ... | MONITORED |
STRATOSPHERIC OZONE AND OXYGEN PROTECT THE EARTH FROM ... | HARMFUL UV LIGHT. |
OZONE O3 ABSORBS ... | UV RADIATION OF WAVELENGTHS 200-300NM. |
THE BREAKING OF A BOND BY LIGHT IS CALLED.. | PHOTOLYSIS. O3 +UVàO2+O. |
OXYGEN ABSORBS... | UV LIGHT IN RANGE 180-240NM. O2 +UVà O. + O. |
THE OXYGEN RADICALS REACTION WITH ... | DIATOMIC OXYGEN IN AN EXOTHERMIC REACTION. O. + O2 à O3 = -600KJMOL-1. |
AN EQUILIBRIUM IS SET UP AND ... | THE CONCENTRATION OF OZONE SHOULD BE CONSTANT. BUT NO AND CFC AFFECT THIS. |
EFFECTS OF CFCS ... | CF2CL2 à CF2CL. + CL. |
THEN CL. +O3 à CL0. +02. THEN ... | CLO + O. à CL. + O2 . |
OVERALL EQUATIONS : | 2O3 à202 |