Why Do Scientists Think That Lithosphere Has to Be Destroyed

question 41

Multiple Choice

Why do scientists think that lithosphere has to be destroyed somewhere on or in the earth?

• A)There is not enough lithosphere on the earth to account for what has been produced in the last 200 million years.
• B)Lithosphere is created at divergent boundaries and the earth is not getting any larger.
• C)The moon is moving away from the earth and this would not happen if the earth had more lithosphere to increase its mass.
• D)The earth is getting smaller as the new oceanic crust cools and contracts.

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Definitions:

Grain Beetles

A group of beetles known for infesting and feeding on stored grains and cereals.

Parasitic Relationship

A biological interaction where one organism, the parasite, lives on or in another organism, the host, causing it harm and benefiting from the nutrients of the host.

Climax-Pattern Model

A concept in ecology that describes the final stable community in a successional series, which remains relatively unchanged until disrupted by a major environmental change.

Species Diversity

The variety and abundance of different species within a given ecological community or ecosystem.