Question
Substitute the bold words with the best option to
improve the sentence. As soon as he arrived home he knew that there was some wrong.Solution
In this sentence some word is used   which is used for quantities while something is used particularly for something.
What causes the permanent hardness of water?
Who invented the mercury thermometer?
Which substance is used to enhance x-ray and CT images?
Which one is the largest Island of Japan?
What is the zoological name for the common housefly?
Which principle allows chalk to write on a blackboard?
Match the following.
When red blood cells are placed in the three types of solution below, what will happen to the cell?
What element is primarily used in a Proton Fusion Engine?
Who discovered Penicillin?
What is the pH level of distilled water?Â