This is true!! hope this helps. :)
Answer:
Earth 24 hours, mercy 1,408 , venus 5,832
Explanation:
Answer:
<em>Natural causes of earthquakes </em>
Explanation:
Earthquakes are triggered<em> by the rapid energy release in some of the Earth's small rocks. Energy can be released by elastic stress, gravity, chemical reactions, or even massive body motion.</em>
The release of elastic strain is the most important cause of all these, because this form of energy is the only sort that can be stored in sufficient quantities on Earth to create major disruptions. This type of energy release related earthquakes is called tectonic earthquakes.
Answer:
b) It started as a fringing reef
Explanation:
When an island (basically a seamount or eroded volcano) that is formed on a caldera and which is surrounded by fringing reefs starts to sink or the sea level starts to rise gradually and engulf it , i.e. when the fringing reefs starts to grow it gradually forms an atoll .
It is basically a coral reef encircling a logoon . Coral starts to grow and build a fringing reef and later this barrier reef forms the atoll , which encircles a lagoon .
The reason why some igneous rocks are smooth and some are coarse is the manner in which they formed. We can simply divide the igneous rocks into intrusive and extrusive ones.
The intrusive igneous rocks are formed deep into the ground. The magma that has formed this rocks has been exposed to higher temperatures and pressures. That has led to a very slow cooling off of the magma. Because the magma has been cooling off slowly, the crystals had time and the right conditions to grow larger, thus making the intrusive igneous rocks coarse.
The extrusive igneous rocks are formed on the surface. They have been formed by the lava that once it come out on the surface has been exposed to much lower temperatures and pressures. That has led to very quick cooling off of the lava. Because the lava has cooled off quickly, the crystals didn't had time to grow in size, thus they have remained very small, almost unnoticeable, thus making the extrusive igneous rocks smoother.
