1) will water boil at 100 degrees celsius whether it has 20 mg or 200 mg of weight?
2) will the two solutions reach boiling point at the same time?
3) explain both answers

yes water boils at 100 degree Celsius but the boiling point water is different at different place because of the altitude of that place. For example boiling point of water is 96 decree Celsius.

No the 2 solutions don't boils at same time. it's because of their volume.

if the volume is more then it takes more time to boli. and vice versa

i think it is d. e because the next one is igneous.

the answer to your question is c