Consuela stands in front of her American History class to give a presentation. She suddenly loses consciousness and suffers a ""sleep attack"" referred to as a. cataplexy. b. narcolepsy. c. ataxia. d. dyspnea.

b. Narcolepsy

Explanation:

Consuela involuntarily fell asleep during a presentation.  Thus this is a case of  a sleep disorder termed as Narcolepsy. A person suffering from this disorder suffer from sleep attacks. He feels excessively sleepy while doing some work and falls asleep involuntarily any time.

The other options cannot be a choice because Cataplexy refers to loss of muscle action. Ataxia refers to a degenerative disorder of nervous system that has symtoms similar to being drunk. Dyspnea refers to shortness of breath.

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explanation:

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c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.