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4 Jan 2023

Question 8

Which statement best describes why scientists cannot study Earth's inner core directly?

A It consists of highly radioactive materials.

B It does not transmit seismic waves.

C It is too deep inside Earth to reach by drilling.

 

Question 9

What do the lithosphere and upper mantle have in common?

A They consist of similar ratios of silicon to iron.

B. They are similar ages (over 4 billion years old).

6 They have similar textures (brittle)