spiral arm
The land is relatively flat.
Ocean basins are not completely flat; they feature a variety of geological structures, including mountains, valleys, and trenches. While the abyssal plains, which make up a significant portion of ocean basins, appear relatively flat and smooth, other features like mid-ocean ridges, seamounts, and deep-sea trenches contribute to a more complex topography. Overall, the ocean floor is characterized by a diverse range of landscapes, contrary to the notion that it is just a flat plain.
A region of flat land is called a plain. Plains are characterized by low elevation and relatively flat topography, making them ideal for agriculture and transportation.
Ottawa is not completely flat, but it does have a relatively flat terrain compared to other regions in Canada. The city is located on the Ottawa River, with some rolling hills and valleys throughout the area.
When seen edge-on, a spiral galaxy appears as a thin, flat disk with a bulging central region. The disk is often darkened by dust lanes along its plane, giving it a more defined edge. The spiral arms are not visible from this perspective.
It is the continental shelf.
abyssal plain
A flat circular object is called a disk or a round.
A cylinder has 2 flat circular faces.
The object described is a cylinder, specifically a right circular cylinder. It is a round solid with flat circular ends.
A cone has a flat circular base
A round object with flat, circular ends is a cylinder. It is shaped like a can of vegetables.
No one knows that because we have not explored outside the universe. If you are thinking about the galaxy, it looks like a straight line from Earth and a circular object from outside the galaxy.
The sheep's eye is concave, the surface of the shape of the lens are circular.
A solid figure that has a flat surface that is a circle is a cylinder. A cylinder consists of two circular bases connected by a curved surface. The flat circular surfaces are at the top and bottom of the cylinder. Another example is a sphere, which has a circular cross-section but is not flat overall.
It is circular
relatively flat