Volcanic eruptions affect many populated areas.
which of the following pieces of evidence would a geologist use to predict future eruptions?

a. correlation with hurricane frequency
b. astrologic relationships
c. frequency of localized earthquakes
d. the price of a barrel of crude oil
e. changes in the intensity of solar radiation

c. Frequency of localized earthquakes

Explanation:

Option (C)

Explanation:

The eruption of a volcano is directly related to the occurrence of earthquakes. Earthquakes refer to the sudden shaking of the earth, which occurs due to the plate tectonic movement, where the tectonic plates move over the viscous layer of the asthenosphere. These plates share three types of boundaries such as the transform, divergent and convergent types, which are responsible for the occurrence of deep-focus and shallow-focus earthquakes.

Geologists study these plate boundaries and determines the frequency of earthquakes in the nearby areas. By analyzing this frequency, it can be determined at what rate the fault movement is taking place and under what condition the magma is rising upward in a volcano, and from these data, they can predict the occurrence of a volcanic eruption.

Thus, the correct answer is option (C).

places of higher salinity. there are parts of the ocean where hardly any rain falls but warm dry winds cause lots of evaporation. this evaporation removes water – when water vapour rises into the atmosphere, it leaves the salt behind, so the salinity of the seawater increases. this causes the seawater to become denser.