Geography Final Exam Flashcards
(96 cards)
What do latitude lines measure?
Distance north or south of the equator
Latitude lines run horizontally and are measured in degrees.
What do longitude lines measure?
Distance east or west of the Prime Meridian
Longitude lines run vertically and are also measured in degrees.
What are the three climatic zones related to latitude?
- Tropical Zone: 0°–23.5° N/S
- Temperate Zones: 23.5°–66.5° N/S
- Polar Zones: 66.5°–90° N/S
How many time zones are there on Earth?
24 time zones
Each covering 15° of longitude.
What is Deep Time?
The vast time scale of Earth’s history, spanning billions of years.
What is the significance of time in plate tectonics?
It helps understand the movement of tectonic plates and geological history.
What are the three types of plate movements?
- Convergent Boundaries: Plates move toward each other
- Divergent Boundaries: Plates move apart
- Transform Boundaries: Plates slide past each other
What is subduction?
When one tectonic plate is forced under another due to their collision.
What is the theory of continental drift?
Continents were once part of a supercontinent (Pangaea) and have drifted apart.
What are the four main proofs of continental drift proposed by Alfred Wegener?
- The fit of the continents
- Fossil evidence
- Similar rock formations
- Evidence of ancient climates
What are convection currents?
Movement of molten rock in the Earth’s mantle caused by heat from the core.
How are igneous rocks formed?
When magma or lava cools and solidifies.
How do igneous rocks become sedimentary rocks?
Weathering and erosion into particles, then compacted and cemented.
How are metamorphic rocks formed?
Subjected to intense heat and pressure, causing physical and chemical changes.
What are the components of soils?
- Minerals
- Organic matter
- Water
- Air
Which type of soil is most common in Canada?
Podzolic soil
Common in forested areas with cool, moist climates.
What is leaching?
The process where water removes nutrients from the soil.
What is calcification?
The accumulation of minerals near the surface of the soil.
What type of climate produces rich humus?
Temperate climate with moderate rainfall and warmth.
What is permafrost?
Permanently frozen ground found in northern regions.
Soil can sequester _______ out of the atmosphere.
Carbon dioxide (CO₂)
How can landforms be classified?
Into highlands, lowlands, and shields.
What are the three regional types of landforms in Canada?
- Highlands
- Lowlands
- Shield
Why is the Canadian Shield rich in resources?
It is rich in minerals due to ancient rock formations.