Answer + Explanation:
Well, first of all, a star is a large ball of gas that undergoes nuclear fusion. So by this definition, a comet is not a star, since it is made of ice and dirt that is running around in space. Stars shine on their own or omit light within their own wavelengths, but comets only shine because they reflect light, hence they are not a star. Comets are created by gravitational pulls and formations broken off of actual planets when they are destroyed, which is why it takes a long time. So as for the tail of the comet, it is more unique. Radiation from the sun pushes dust particles faraway from the coma, forming a dust tail, while charged particles from the sun convert a number of the comet's gases into ions, forming an ion tail. Since comet tails are shaped by sunlight and also solar radiation, they always point far from the sun.
Hope this helped!! :)
Answer: d or a
d best tho
Explanation: cultural diffusion is when different cultures are spread into different areas. It is the mixing or blending of different ideas, beliefs, and innovations from one group to another. ... These interactions lead to cultural diffusion.
Answer:
Depression in the middle refers to basin whereas circular shape at the middle denotes dome.
Explanation:
If this large bullseye structure has depression in the middle and the sides are higher than the middle region so it is known as basin while on the other hand, if this large bullseye structure has rounded uplifted landform so we can say that it is a dome. The structure of basin looks like a bowl which has low length at the middle and higher length at the bottom whereas dome has circular surface having sides of low height and middle is more in height.
Answer:
between North America and South America (dividing the Americas): at some point on the Isthmus of Panama
