Geography and Environmental Factors

What is the main focus of physical geography?

• Studying how human societies interact with each other.

• Recognizing environmental characteristics and the processes that shape them.

• Analyzing economic systems and trade routes.

• Mapping political boundaries and cultural regions.

Which of the following is NOT considered one of Earth's four major systems (spheres)?

• Atmosphere

• Hydrosphere

• Technosphere

• Lithosphere

How does the lithosphere contribute to the Great Barrier Reef ecosystem?

• It provides the water currents that bring food and oxygen.

• It forms the rocky foundation that protects corals from waves.

• It creates the storms that clean up sediment.

• It is where the corals get their food from.

What is the primary energy source that drives interactions between Earth's atmosphere, hydrosphere, lithosphere, and biosphere?

• Volcanic eruptions

• Earth's internal heat

• Incoming solar radiation

• Gravitational pull of the moon

Who were the first people to settle Iceland around 870 CE?

• Greek explorers

• Irish hermits

• Nordic people

• Roman traders

What human activities led to significant soil erosion in Iceland about 1,000 years ago?

• Volcanic eruptions and glacier movement

• Cutting down forests and overgrazing by livestock

• Building dams for hydropower

• Excessive fishing and marine pollution

What percentage of Iceland's electricity came from hydropower as of 2015?

• 100%

• 50%

• 73%

• 25%

Which of the following factors limits the growth of diverse flora in Iceland?

• The North Atlantic Drift current

• Abundant marine mammals

• Overgrazing, deforestation, and volcanic activity

• Mild winters and cool summers