Answer:
That is the answer I am very sure good luck and sorry if I took too much time
Clinical death is the medical term for cessation of blood circulation and breathing, the two necessary criteria to sustain human and many other organisms' lives.
It occurs when the heart stops beating in a regular rhythm, a condition called cardiac arrest.
Brain injuries start to accumulate almost immediately after Clinical Death.
Full recovery of the brain after more than 3 minutes of clinical death at normal body temperature is rare.
Usually brain damage or later brain death results after longer intervals of clinical death even if the heart is restarted and blood circulation is successfully restored.
Although loss of function is almost immediate, there is no specific duration of clinical death at which the non-functioning brain clearly dies.
The most vulnerable cells in the brain, CA1 neurons of the hippocampus, are fatally injured by as little as 10 minutes without oxygen.
However, the injured cells do not actually die until hours after resuscitation.
Brain failure after clinical death is now known to be due to a complex series of processes called Reperfusion Iinjury that occur after blood circulation has been restored, especially processes that interfere with blood circulation during the recovery period.
Hope this helps!!!
~Alkka♥
A.) Geophysics :)
We define geology as the study of the Earth, the materials and processes, structure, and even the physics and chemistry that underlie them. Specific topics include plate tectonics, formation of minerals and rocks, weathering and erosion, earthquake hazards, volcanoes, crustal deformation, stream and river processes, and glacial processes.
It can’t be meteorology because that’s having to do with the branch of science concerned with the processes and phenomena of the atmosphere, especially as a means of forecasting the weather.
It can’t be biology because it’s the study of living organisms, divided into many specialized fields that cover their morphology, physiology, anatomy, behavior, origin, and distribution.
It can’t be geography because that’s the study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources, land use, and industries.
So it has to be geophysics! The science devoted to the study of the physical properties and processes of geological phenomena, including fields such as meteorology, oceanography, and seismology. :)
The answer is B because of the pieces of evidence that scientists use to prove continental drift are similar Mountain Ranges, Fossils, and Ice.