Question

While looking through a telescope, an astronomer views an object that is moving and appears to have a tail. The astronomer states that the tail is caused by evaporation. What is the astronomer most likely observing?.

Answer 1

A comet

Step-by-step explanation:

A comet is composed of mostly ice. As it passes close to the sun, it warms up and begins to release gases, the gases seem longer and they look like a tail. Because the ice gets warmer close to the sun and because it's icy, it changes from ice to liquid and finally vapour. hence evaporaction.