What is the advantage of timing over a shorter period of time especially when you have just finished exercising

The advantage of timing over a shorter period of time especially when you have just finished exercising the bock to its normal stage and ready to work

Explanation:

As a byproduct of non-oxidative respiration lactic acid is produced in the muscle used during exercise to fulfill the energy requirement of muscle when the supply of oxygen is weak. The lactic acid production in muscle cell cause muscle soreness.

Our heart rate increases to filfill the oxygen supply of cells during exercise.

When we take a short break the lactic acid metabolise and the heartbeat back to normal.

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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.