Mac measured the density of silver three times and calculated the following percent errors.
trial 1: 0.95%; trial 2: 2.86%; trial 3: -3.81%
which of mac’s trials is the most accurate?
a.
not enough information is provided.
b.
trial 1
c.
trial 2
d.
trial 3

Option A, Not enough information is provided

Explanation:

None of the trials value is close to each other. Hence it is very difficult to reach any conclusion.

Also, with this limited set of trial value it is even difficult to guess which is the most nearest set of percent error. Thus, we cannot answer this question until unless more information is provided.

Hence, option A is the correct answer

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.

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