Chemistry Petroleum is a mixture of Elements Hydrocarbons Salts Polymers Elements Hydrocarbons Salts Polymers ANSWER DOWNLOAD EXAMIANS APP
Chemistry The most abundant metal in the Earth’s crust is Copper Iron Aluminium Zinc Copper Iron Aluminium Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called None of these Eutrophication Smog Green house effect None of these Eutrophication Smog Green house effect ANSWER DOWNLOAD EXAMIANS APP
Chemistry The “King of Metals” is : Gold Aluminium Silver Iron Gold Aluminium Silver Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one is the simplest aromatic hydrocarbon Picric acid Chloride Benzene Aspirin Picric acid Chloride Benzene Aspirin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most poisonous pollutant in water is Zinc Detergent Phosphate Arsenic Zinc Detergent Phosphate Arsenic ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS