You find a ring with a mass of 107g. You fill a graduated cylinder up with 10ml of water and put the ring into the cylinder. The water rises up to the 15mL mark.

it is the second option.

co2reflects heat radiation back to earth buning coal and oil emits co2 globe warms

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.