H Environmental Science Unit 4

What type of plate boundary is this?

Convergent

What IS NOT associated with divergent plate boundaries?

Subduction zones

What is not an example of intraplate volcanism?

Mt. St. Helens

During an earthquake, energy radiates out from the center known as the

focus

What happens to the pressure as altitude increases?

it increases

What causes the Coriolis Effect?

The Earth spins faster at the equator

What defines a watershed?

The divides

What causes Earth's seasons?

Its tilted axis

Earth is closest to the sun in

January

The rain shadow effect is caused by

Mountains

large bodies of water create more _______ in nearby land areas

Stable temperatures

El Niño and La Niña occur at ______ intervals

irregular

El Niño impacts what?

Pacific fisheries, weather in the Americas & Southeast Asia

Layer of atmosphere where weather is produced

Troposphere

Air near the equator

rises then falls

Wind currents are created by

convection currents and the deflection of air masses

What happens in a subduction zone?

denser plate (oceanic) goes under the lighter plate (continental)

convergent plate boundary

two plates move towards each other ->

During subduction

magma rises

pressure from magma eventually causes

volcanic eruptions

transform boundary

plates move against each other ↑↓

Subduction creates

volcanoes, mountains

what happens along a transform boundary during an earthquake

sudden drastic movement causes friction and creates faults

what happens along a transform boundary between earthquakes

plates rubbing against each other creates pressure

What type of plate boundary is this?

divergent

What type of plate boundary is this?

transform