2 - Physical Geography - Spheres

What is the lithosphere?

• The rigid outer layer of the Earth, including the crust and upper mantle

• The semi-fluid layer beneath the tectonic plates

• The core of the Earth

• The atmosphere surrounding the Earth

What causes the movement of tectonic plates?

• Convection currents in the mantle

• Wind and water erosion

• The rotation of the Earth

• Gravitational pull from the moon

Which geological event is caused by the collision of tectonic plates?

• The formation of mountain ranges

• The creation of valleys

• The erosion of canyons

• The formation of islands

What is the primary function of the water cycle within the hydrosphere?

• To distribute water across different regions

• To create ocean currents

• To increase salinity in oceans

• To decrease global temperatures

Which factor does NOT drive ocean currents?

• Wind

• Salinity

• Temperature differences

• Evaporation

What is a major challenge associated with freshwater resources?

• Even distribution across the globe

• Over-extraction leading to depletion

• Lack of use in agriculture

• Excessive rainfall

What is the primary function of the Earth's atmosphere?

• To sustain life by providing oxygen

• To trap heat and keep the Earth warm

• To protect the Earth from harmful ultraviolet radiation

• All of the above

Which layer of the atmosphere contains the ozone layer?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What are greenhouse gases responsible for?

• Absorbing and emitting infrared radiation

• Depleting the ozone layer

• Causing weather changes

• Blocking harmful UV rays

What is the primary focus of ecosystems within the biosphere?

• Interactions among living organisms and their environment

• The climate of large regions

• The genetic variations within species

• The establishment of protected areas