it starts with B i am sure
its called weathering, or erosion
It is either an asteroid (if reasonably large) or a meteoroid (if smaller). Some meteoroid swarms are the remnants of comets that lost their volatile compounds and broke up into pieces.
A large amount of rock fall is called an avalanche.
Large amounts of fallen rock are called "talus."But Rock avalanche is a proper term, as is Rock slide, or rockfall.
A large boulder.
It is many things: Hard. A boulder. Heavy. Big.
The large lump of rock orbiting around the earth is called the moon
a sample
A piece of rock embedded in igneous rock is called a xenolith. Xenoliths are typically found in volcanic rocks such as basalt or lava flows.
Ayers Rock.
It's called a Plain.
A xenolith is a large piece of country rock that has been broken off and/or surrounded by an igneous intrusion. As the magma intrudes the country rock it may completely surround large pieces. These pieces are then called xenoliths.