Why the thickness of earth crust varies widely between Continental masses and the ocean floor

Answer. These varying thickness of earth's crust is basically due to continuous disturbances occurring beneath the earth crust. ... These convection currents results in continuous shifting of tectonic plates, which causes non uniform earth crust.

analyze the map below and answer the question that follows.

what does the map above tell us about the endemity of typhoid fever?

a.

there is greater occurrence of the disease in the western hemisphere.

b.

there is greater occurance of the disease in the northern hemisphere.

c.

countries located in equatorial regions are more likely to have incidents of typhoid fever.

d.

typhoid fever is more rampant among caucasian populations.

would the answer be physical geography and cultural geography i haven't studied geography but i searched it online and those are my answers.

hope this .

plz mark me as brainliest answer: d