Scientists have thought that magmas that form new crust at fast-spreading ridges rise up from the depths, quickly crystallize, and then push away from the ridge to form new ocean floor.
To stop a computer from overheating never keep a cloth or something else on the CPU or monitor. Also use the save energy option from properties so as to switch off the monitor when not in use. This will always help in keeping the computer cool and not overheating it.
absolutely but operating temps are considered the 80-85c cpu's these days are made to withstand use for long periods of time approx. ten years. heat can lead to degradation but what really kills most cpu's is voltage. another thing you must keep in mind most people wont have their computer under full load.