Based on Seismic Tomographic Images,how Deep Do Subducting Slabs Extend

question 1

Multiple Choice

Based on seismic tomographic images,how deep do subducting slabs extend?

• A)to the crust-mantle boundary
• B)to the upper mantle-lower mantle boundary
• C)to the core-mantle boundary
• D)to the inner core-outer core boundary

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Definitions:

Photosynthesis

The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water, producing oxygen as a byproduct.

Chlorophyll

A group of light-trapping green pigments found in most photosynthetic organisms.

Photosynthesis

The method through which certain green plants and other entities utilize sunlight to create nutrients from carbon dioxide and water, with oxygen being emitted as an incidental product.

Gas Exchange

The biological process through which different gases (like oxygen and carbon dioxide) are transferred in opposite directions across an organism's respiratory surfaces.