Explanation:
lease please please please please please please
When you add salt to water, you lower to freezing point of the substance.
So for example, normal water freezes at 0°C. But water with salt in it won't freeze at 0°C, because its freezing point is lowered.
In answer to the question. It takes longer for water with salt in it to freeze because the substance requires a lower temperature than normal water to freeze.
The answer is A - cytosine and adenine
Question 24 is 56 because the nuetrons don't have weight