A CONCAVE mirror is a mirror with a reflecting surface that curves inward.
Concave
how do caves form
A concave surface is hollow and bends inwards.... think of it as conCAVE.... caves are hollow.A convex surface is like a bump and bends outwards... a convEX bump is on the EXterior of an object
Vietnam is often cited as having the most caves in the world, with over 2,000 discovered so far. The Son Doong Cave in Vietnam is known as the largest cave in the world by volume.
Erosion
mountains,caves/caverns,canyon
Caves are formed through a process called speleogenesis, which involves the dissolution of soluble rocks like limestone, dolomite, or gypsum by groundwater. Over time, the water creates underground passages and caverns as it erodes and dissolves the rock, creating the intricate formations seen in caves. Other processes like tectonic activity, erosion, and lava flows can also contribute to cave formation.
Caves are formed in many ways but mostly by chemical weathering of the surface rock. Tectonic plates on the other hand are huge slabs of rock that form the Earth's crust. Caves are not formed by tectonic plates, think of caves as tiny boreholes in the very surface of a tectonic plate. I agree
mountains,caves/caverns,canyon
Yes, inactive volcanos will have lava tubes that are just like caves, they are the paths molten lava took to get to the surface.
Water can create caves.
generally, in limestone uplands, where the limestone is sufficiently massive to hold caves, and particularly but not exclusively where the local surface drainage can concentrate rainwater into discreet streams than can then form sink caves when they flow onto the limestone.