A planetary nebula is a (ring-shaped) type of nebula formed by an expanding shell of gas around an aging star. *a planetary nebula is a type of nebula*. im not completely certain though. i might be wrong.
Answer: the mayan calendar
Answer:
to the right in the Northern Hemisphere, and to the left in the Southern Hemisphere
Explanation:
Rotation is the movement that the earth makes around itself every day, allowing for different times between day and night in the two hemispheres. Like the earth, the bodies are also in motion, but the force of inertia present in them causes an effect known as the Coriolis Force, which is the inertial force present in these bodies. The effect of the Coriolis force is perpendicular to the movement and this interferes with the way an object would be deflected by the rotation movement. In this case, the coriolis force would induce an object to be deflected to the right in the northern hemisphere and to the left in the southern hemisphere.
Answer:
None of the above
Explanation:
More than a billion years ago, for instance, the North American plate began a rifting process. A triple junction formed in the middle of the young continent, and a deep rift valley developed. Freshwater drained and collected in this rift valley, creating a lake.
Hope this helps
Um is this the question lol?, please add question so that I can answer it