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