Understanding Tectonics

What are the two main categories of natural hazards?

• Geophysical and chemical hazards
• Geophysical and hydro-meteorological hazards
• Hydro-meteorological and biological hazards
• Biological and geological hazards

What can be a consequence of tectonic plate movements?

• Earthquakes and volcanic activity
• Diminished biodiversity
• Increased rainfall
• Reduced air quality

Which of the following best describes the Ring of Fire?

• A geological feature in the ocean
• A tectonic plate boundary
• A hotspot for earthquakes and volcanoes
• A region with no volcanic activity

Which tectonic plate boundary is most likely to cause powerful earthquakes?

• Transform boundaries
• Convergent boundaries
• Intraplate boundaries
• Divergent boundaries

How has the total number of recorded hazards changed since 1960?

• It has decreased significantly
• It has remained the same
• It has increased
• It has fluctuated wildly

What is a significant factor contributing to the increase in fatalities from tectonic hazards?

• Improved building codes
• Better emergency response systems
• Population growth in hazard-prone areas
• Decreased awareness of hazards

What is one reason for the increase in economic costs associated with tectonic hazards?

• Lower repair costs
• Increased insurance policies
• Decreased population
• Less infrastructure

What is a challenge in reporting disaster impacts?

• All data sources agree on the number of fatalities
• Data collection is easier in rural areas
• Different organizations may use varying methods
• Governments always provide accurate data

What is the thickness of oceanic crust?

• 70 km
• 30 km
• 7 km
• 100 km

What is the primary composition of the mantle?

• Liquid water and gases
• Silicate rocks rich in iron and magnesium
• Metals and minerals
• Granite and basalt