I think its E or D........
Comets are cosmic snowballs of frozen gases, rock and dirt that orbit the Sun. once frozen, they're the dimensions of a small city. when a comet's orbit brings it about to the Sun, it heats up and spews dirt and gases into an enormous glowing head larger than most planets.
Hope it helps!<3
The Panama Canal took 10+ years to construct because construction workers only worked on it once every two weeks. This was because they were faced with difficult weather trying to build it. Difficulties such as land sliding, rain, costs, inadequate machinery, and the threat of yellow fever and malaria.
profile is the side view of a particular area
