Why do some bodies become skeletons and others mummies?

Mummies are preserved, and the people who become skeletons, are not

Explanation:

because some people used to mummify the bodies by Inserting a hook through a hole near the nose and pull out part of the brain, Making a cut on the left side of the body near the tummy, Removing all internal organs, Letting the internal organs dry, Placing the lungs, intestines, stomach and liver inside canopic jars, then Place the heart back inside the body, and doing a lot more stuff like wrapping the corpse up and stuff. The ancient Egyptians mummified their dead because they believed that the physical body would be important in the next life. Thus, preserving the body in as lifelike a way as possible was the goal of mummification

some become skeletons because, well, the skin, flesh, and organs decay over time leaving only the bones

Explanation:

one of the most common forms of pain or discomfort we feel during strenuous exercise is a burning sensation in our lungs or muscles that goes away shortly after we cease the activity. this is caused by a build-up of lactic acid.

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.