Chemistry The presence of ozone in the stratosphere is responsible for Higher rate of photosynthesis Supplying oxygen for people travelling in jets Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth Higher rate of photosynthesis Supplying oxygen for people travelling in jets Increasing the average global temperature in recent years Checking the penetration of ultra-violet rays to the earth ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas dissolved in water that makes it basic is : Ammonia Hydrogen Sulphur dioxide Carbon dioxide Ammonia Hydrogen Sulphur dioxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bridgmanite is Earth’s most abundant minera Name of a music Name of a game A bridge on the river Thames Earth’s most abundant minera Name of a music Name of a game A bridge on the river Thames ANSWER DOWNLOAD EXAMIANS APP
Chemistry The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ? 6 12 Zero 18 6 12 Zero 18 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The process of improving the quality of rubber by heating it with sulphur is called. Acceleration Sulphonation Galvanization Vulcanization Acceleration Sulphonation Galvanization Vulcanization ANSWER DOWNLOAD EXAMIANS APP
Chemistry One carat of diamond is equal to 100 mg 150 mg 250 mg 200 mg 100 mg 150 mg 250 mg 200 mg ANSWER DOWNLOAD EXAMIANS APP
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