Questions

The number of protons in an isotope or an atom gives its atomic number whereas the number of protons and neutrons gives its mass number.

Since, the sentence starts talking about the forces, the continuing statement would be the statement talking about the consensus of the forces on a particular point i.e. Q follows. R will be the next statement as it connects Q by stating that they agreed for a cease fire. The next statement would be talking about the reason of the cease fire, therefore, P follows and S would be the concluding statement which makes a coherent paragraph. The correct formation would be, ‘Georgian loyalists and rebel forces agreed to a ceasefire today after a week of fighting in which 51 people were killed’.

Actually by swimming a person can easily burn more than 450 calories upto 920 calories per an hour. So, burn less than 400 calories per hour is not correct regarding swimming.

Appetite is the desire to eat food or in short feeling of hunger. Appetite is triggered by the time of day, the smell, taste and texture of food, the culture in which one is raised.

OS-2 operating systems is produced by IBM. It also created it's own version of DOS called PC-DOS.