The Heartgard brand is among the most trusted heartworm prevention medications, and for good reason. Heartgard Plus Chewables for Dogs helps protect your dog's health by preventing canine heartworm disease, as well as kill hookworms, and roundworms.â¦ [+]
Like all planets in our solar system, the Earth is in an elliptical orbit around our Sun. In Earth's case, its orbit is nearly circular, so that the difference between Earth's farthest point from the Sun and its closest point is very small. Earth's orbit defines a two-dimensional plane which we call the ecliptic.The Earth with its Sun.he Earth's orbit is in the shape of an ellipse, so that sometimes the Earth is a little bit closer to the Sun than at other times.
The Earth is an oblate spheroid. That is, it is roughly a sphere, but the speed of its rotation causes it to bulge out near the equator   Due to the tremendous size of the â¦earth, the laws of perspective, and the relative closeness to the surface of the earth that we typically use as our reference point, the earth appears flat to us.