Answer:
Sunlight travels through space without the aid of fluids or solids.
Explanation:
By definition, radiation is transfer of heat without a medium.
All other options are have convection involved in them, not radiation.
Answer:
Boyle's most famous discovery had to do with how the pressure and volume of gases relate, either this or he discovered the volume of a gas decreases with increasing pressure...
Explanation:
...
Mercator and conic projections are different because conic projections have a cone/triangle shape and Mercator projections have a cylindrical look to them. They are both the same because they show the world. However, the world is viewed from very different perspectives. For example, a Mercator projection is from the point of view of a bird and the conic is from a view from space.
Chemical changes:
burning wood
digesting food
mixing acid and base
Physical changes:
breaking a bottle
melting an ice cube
crumbling a sheet of paper