A) When the material brings danger to people and environment. B) When the material gives other uses aside from its purpose. C) When the material can be used in cooking. D) When the material can be used many times.
A) When the material can be repaired. B) When the material served its primary use and can be discarded. C) When the material can be recovered and be used a fuel. D) When the material is still another use.
A) Broken into pieces B) Melts by the sun C) Flattened D) Decomposed by bacteria
A) rubber B) paper C) wood D) leaves
A) Old Newspapers B) Empty Disinfectant Bottle C) Used Paintbrush D) Drained Batteries
A) Rubber Tires B) Empty Mayonnaise Jar C) Plastic Water Bottles D) Drained Batteries
A) Sodium Chloride B) Antibiotic C) Sodium bicarbonate D) Vinegar
A) Penicillin B) Mercury C) Vinegar D) Sodium Chloride
A) Paper B) Cleaner C) Plastic straw D) Plastic bottle
A) All of these B) Keep it your house C) Throw it into the river D) Segregate it properly and recognize the useful and harmful materials
A) fish sauce B) soda C) coffee D) dishwashing liquid E) beer
A) Alcohol B) Butter C) Bleach D) Dishwashing Liquid E) Soap
A) muriatic acid B) gasoline C) insecticideinsecticide D) fruit shake E) milk teasoy sauce
A) gasoline B) cooking oil C) dishwashing liquid D) toothpaste E) vinegar
A) FALSE B) TRUE
A) TRUE B) FALSE
A) FALSE B) TRUE
A) FALSE B) TRUE
A) FALSE B) TRUE
A) TRUE B) FALSE |