Gases also have but it is difficult to detect, air (atmosphere) has an outer open surface.
Solids have a defined structure with closely packed particles that maintain a fixed shape, resulting in an open surface. In contrast, gases consist of widely spaced particles that move freely, allowing them to fill the container they occupy without a fixed surface. This difference in particle arrangement and behavior explains why solids have distinct surfaces while gases do not.
Usually they do not. The surface areas are part of the solid and so they belong to closed sets.
Gases diffuse into and out of plants through small openings on the surface called stomata. These stomata are surrounded by guard cells that can open and close to regulate the exchange of gases such as oxygen and carbon dioxide with the environment. The process of gas exchange is essential for photosynthesis and respiration in plants.
Gases can't be stored in open containers because the gas will escape into the atmosphere. Gases have the tendency to occupy all the space that is available to them. If I have to explain it i would tell you to imagine molecules as small children who love huge spaces so that they can run around, gas molecules are exactly that.
The British Open is played on a grass surface.
The opposite of the palm of your hand is the back of your hand. While the palm is the inner surface that faces you when your hand is open, the back of the hand is the outer surface that faces away.
Gases enter and exit a leaf through stomata. These are openings in the epidermis which are regulated by guard cells. Guard cells decide which gases can go in and out. The gas that goes in is carbon dioxide and the gas that goes out it oxygen.
Open fissures are narrow openings or cracks in the Earth's surface, often found in areas of tectonic activity or volcanic eruptions. These fissures can release gases, lava, or other materials from beneath the Earth's crust. They can pose a potential hazard to nearby communities due to the potential for sudden releases of volcanic activity or toxic gases.
Hard surface
hard surface
The surface is open to the exterior.
A solid fuel booster is like a huge firecracker. Teh Explosive is formed into a hollow cylinder open at one end. When it ignites, the interior surface of the cylinder burns. The gases that result rush out the open end, pushing the booster and anything attached in the other direction.