The Sharply Defined Boundary That Separates the Crust from the Mantle

question 60

Multiple Choice

The sharply defined boundary that separates the crust from the mantle is called ______________.

• A) the lithosphere
• B) the asthenosphere
• C) the Mohorovicic discontinuity
• D) none of the above.

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Definitions:

Water Pollution

The contamination of water bodies, such as lakes, rivers, oceans, and groundwater, by harmful substances, degrading water quality and harming aquatic ecosystems.

Ocean Dumping

refers to the disposal of waste materials into the ocean, including pollutants like plastics, industrial waste, and radioactive materials, which can severely affect marine life and ecosystems.

Sewage Sludge

A semi-solid byproduct from the treatment processes of municipal wastewater, containing both nutrients and contaminants and is often repurposed as fertilizer.

Industrial Waste

The by-products and waste materials produced by industrial activities, which can be hazardous to the environment and human health if not properly managed.