Stalagmites
Stalactites and Stalagmites
Caves that go straight down are typically referred to as vertical caves or potholes. These caves are formed by a combination of geological processes such as water erosion or volcanic activity, creating deep vertical shafts in the ground.
In the ground.
Karst caves, and it is the majority of caves; formed by acidic ground-water dissolving the limestone.
These are not called needles but spikes the spikes get put into the shoe. It's to stop you falling in crosscountry races and slipping on the track.It is actually quite confusing because as well as the shoe being called spikes the jaggy things are called spikes too.
When using camping spikes to secure your tent in different terrains, it is important to choose the right type of spike for the ground, such as longer spikes for soft ground and shorter spikes for rocky terrain. Make sure to drive the spikes into the ground at a 45-degree angle and use a mallet or rock to secure them firmly. Additionally, avoid placing spikes too close to the tent walls to prevent damage. Regularly check and adjust the spikes as needed to ensure your tent remains secure.
yes
The echidna's spikes are called spines.
what are writing found in caves called?
To get better traction into the ground and to not slip
That would be either a mace with spikes, or a flail with spikes.
With metal spikes on the bottom that go into the ground and secure the plate from moving.