Two scientists are attempting to determine whether an object is a comet or an asteroid. The table lists the questions they have and their observations.

Question

Question Answer
Where was the object observed? the Oort cloud
What is the object made of? dust and ice
Does the object have a visible tail? no

Answer 1

Based on the observations and answers to the questions, the scientists can conclude that the object is a comet. Comets are typically found in the Oort cloud, are made of dust and ice, and often have visible tails. The fact that this object does not have a visible tail may be an anomaly, but the other characteristics point to it being a comet rather than an asteroid.