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Darwin's theory starts with a volcanic island which becomes extinct.
As the island and ocean floor subside, coral growth builds a fringing reef, often including a shallow lagoon between the land and the main reef.
Ultimately the island sinks below the sea, and the barrier reef becomes an atoll enclosing an open lagoon.
A fringing reef can take ten thousand years to form, and an atoll can take up to 30 million years
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Source : Wikipedia
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What are the 4 stages of coal formation?
The four stages of coal formation are peat, lignite, bituminous, and anthracite. Peat is the first stage and is partially decomposed plant material. As the peat is buried and compressed, it transforms into lignite, then bituminous coal, and finally anthracite, which is the most carbon-rich and hardest form of coal.
What are the stages of peat?
The stages of peat formation are plant material accumulation, peat accumulation, and then burial and compaction over time. Initially, plant material accumulates in a waterlogged environment, leading to the formation of peat. As more material accumulates, it becomes compacted and eventually buried, starting the process of coal formation.
Would you expect to find an atoll in the Bering Sea?
No, atolls are typically found in tropical regions and are formed from coral reefs. The Bering Sea, located in the northern Pacific Ocean, has a colder climate which is not conducive to coral reef formation.
How many stages do scientists hypothesis there are to pangaea?
Scientists hypothesize that there are two main stages to the formation of Pangaea: the assembly stage, during which the continents were moving closer together, and the breakup stage, when Pangaea began to split into separate continents.
What is the formation stages of a thunderstorm?
The formation stages of a thunderstorm are: 1) Cumulus stage - warm air rises, forming cumulus clouds, 2) Mature stage - updrafts and downdrafts strengthen, leading to heavy rain, lightning, and gusty winds, 3) Dissipating stage - downdrafts dominate, causing the storm to weaken and eventually dissipate.
What are the four stages of bone formation?
There are four stages in the repair of a broken bone: 1) the formation of hematoma at the break, 2) the formation of a fibrocartilaginous callus, 3) the formation of a bony callus, and 4) remodeling and addition of compact bone.
What are the four stages of hemostasis?
The four stages of hemostasis are vasoconstriction, formation of a platelet plug, blood clotting (coagulation), and clot retraction. These stages work together to stop bleeding when a blood vessel is injured.
How many stages does a plant life cycle have?
A plant life cycle typically has four stages: seed germination, growth and development, reproduction, and seed formation.
What are the stages of growing coral?
# fusion of gametes from parent coral and formation of zygote # free-swimming larval form (planula) # settling on a substrate and forming a stationary polyp # polyp reproduces by budding (asexually) and forms a colony # sexual maturity reached
What do you call a coral formation?
A reef .
What is another name for a coral formation?
Coe
Who is the author of coral reef formation?
Genny
How many stages are in The condensation theory?
There are six different stages in the condensation theory. These include the formation of a nebula cloud, the formation of a sun, the formation of planetesimals, the expulsion of gases from the forming sun, the growth of the planetesimals, and the formation of larger planets from planetesimals.
What organisms are responsible for the formation of coral reefs?
corals
What is the name of the huge coral formation on the north coast of Australia?
There is no huge coral formation on the north coast of Australia. The Great Barrier Reef is a 2300 km long coral reef off the northeastern coast of Australia.
What are the four stages after fertilization?
The four stages following fertilization are cleavage, blastula formation, gastrulation, and organogenesis. Cleavage is the rapid cell division of the zygote, leading to the formation of the blastula, which is a hollow ball of cells. Gastrulation involves cell movement and rearrangement to form the three germ layers: endoderm, mesoderm, and ectoderm. Organogenesis is the process of organ formation from the germ layers.
When was The Four Stages of Cruelty created?
The Four Stages of Cruelty was created in 1751.
