3. ROCK COMPOSITION- Some minerals resist weathering. Quartz is a mineral that weathers slowly. Rocks made up of minerals such as feldspar, calcite, and iron, weather more quickly.

Metamorphic rocks

Several types of rock, like granite, are very repellent to weathering. Moreover, Igneous rocks serve to heat slowly because it is difficult for water to penetrate into them.

Not only is quartz the most stable of the common rock forming minerals in chemical weathering, its high hardness and lack of cleavage make it quite resistant to mechanical weathering.

A cold, dry climate will produce the lowest rate of weathering. A warm, wet climate will produce the highest rate of weathering.

The formation conditions of diamond are very different from the atmospheric conditions to which they are exposed at the surface. It should normally result in low resistance to weathering but diamond tolerates weathering very well because of its strong covalent bonds.

A coin left on a headstone or at the grave site is meant as a message to the deceased soldier’s family that someone else has visited the grave to pay respect. Leaving a penny at the grave means simply that you visited.

So it’s not a park like those you have in the US. It’s also considered disrespectful to go there just for leisure. You’re either interested in the tombs or go somewhere else. It’s not like there’s space for anything else anyway.

Its not disrespectful in the sense of you are wanting to be thoughtful and make headstones more cleaner, easier to read, be more presentable but it is your best bet to just get permission to do so first like others said.

Strictly speaking, a headstone is a marker at the head of a grave, and a footstone is a marker at the foot of a grave.

As Christopher answered, soil creatures will easily get to a buried body. This includes worms and ants, and certainly bacteria. That said, if the body has been embalmed well and if the casket is vaulted and made of metal or cement, it and the body inside may last quite longer than expected.

Often the remains are wrapped in a shroud and laid in a grave for burial, for the very purpose of recovering any remains left in the future. After a particular length of time, usually seven to ten years, the remains are exhumed to reuse the grave space when needed.

In many cases, people are cremated in either a sheet or the clothing they are wearing when they arrive at the crematory. However, most direct cremation providers allow you the option of dressing your loved one, yourself, prior to direct cremation if you prefer.

If the coffin is sealed in a very wet, heavy clay ground, the body tends to last longer because the air is not getting to the deceased. If the ground is light, dry soil, decomposition is quicker. As those coffins decompose, the remains will gradually sink to the bottom of the grave and merge.

After 10 years: teeth, bones, and maybe sinew or skin From eight days on, skin recedes from fingernails, bodies start to look “much less human,” as Ranker describes, and flesh begins to decompose. With no coffin or embalming, a body in the ground in nature takes eight to ten years to totally decompose.

An embalmed body usually lasts in a coffin for up to 10 years, but can last from 3 to 100 years, depending on the: Skill of the embalmer. Length of time from death before embalming.

By the time a body has been buried for 100 years, very little of what we recognize as the “body” is left. According to Business Insider, you can’t even count on your bones being intact by year 80. After the collagen inside them breaks down completely, bones essentially become fragile, mineralized husks.