Study the image of earth’s interior.

the top layer is labeled lithosphere. a point rising from the mantle is labeled ridge. black arrows move away from either side of the ridge. a trench is labeled on each side of the lithosphere. mantle is centered within an oval made of red arrows rotating counterclockwise below the lithosphere to the left of the ridge. asthenosphere is at the top of an oval made of red arrows rotating clockwise set to the right of the ridge below the lithosphere. the outer core is beneath the mantle.

which phrase explains what the arrows show?

how convection currents move in earth’s interior
the location of heated material near earth’s surface
where plates move as material cools in the outer core
why the densities of materials remain constant at different layers

how convection currents move in Earth's interior

Explanation:

The arrow depict the different convection currents that move in the Earth's interior starting with the lithosphere. The subducting crustal plates sink into the asthenosphere because they are denser and cooler than the partially molten rock in the upper mantle. Mantle plumes rise towards the lithosphere and form ridges because they are warmer and lighter than the rock surround them.

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.

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explanation: