Tectonic Hazards Flashcards

1
Q

What plate boundary do Composite volcanoes form on

A

Convergent

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2
Q

What plate boundary do Shield volcanoes form on

A

Divergent and Hotspots

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3
Q

What is the greenhouse effect?

A

The way particles of gas (methane, carbon dioxide, nitrous oxide, water vapour) trap heat/solar radiation from the sun in the atmosphere.

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4
Q

What is climate change?

A

A sustained change in the average temperature of earth over years.

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5
Q

What is the enhanced greenhouse effect?

A

When human activities result in a large increase of the production of greenhouse gasses

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6
Q

What is volcanism?

A

It is when some volcanoes produce so much volcanic material is partially blocks out the solar radiation.

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7
Q

What are the Milankovic cycles?

A

It is the natural changes to the Earth’s orbit and position affecting how much solar radiation we receive.

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8
Q

Where are earthquakes formed?

A

They are formed at plate boundaries.

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9
Q

What type of pressure system is a tropical storm?

A

Low pressure weather system.

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10
Q

Tropical storms form when water is at what minimum temperature?

A

27⁰C

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11
Q

When does a tropical storm begin to lose energy?

A

When it reaches land.

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12
Q

How will climate change impact tropical storms?

A

It will make them more powerful/intense.

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13
Q

What can help track and predict tropical storms?

A

Satellite images.

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14
Q

What force causes tropical storms to spin?

A

The Coriolis affect.

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15
Q

What are the weather conditions at the eye like?

A

Calm and clear.

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16
Q

What are natural causes of climate change?

A

Orbital change/Milankavic cycles, Volcanism,

17
Q

What can be used to measure the climate in the past?

A

Ice cores, Tree rings, Historical evidence e.g diaries, painting.

18
Q

Are warm currents at the top or bottom?

A

Warm currents are at the top, cold currents are at the bottom.

19
Q

What do the ocean currents redistribute?

A

Heat energy.

20
Q

Where do warm currents transport warm water?

A

Polewards, away from the equator. When they reach the poles, they cool and sink, because they become heavier and denser.;

21
Q

Where do cold currents transport cold water?

A

To the equator, they eventually warm, becoming less dense and then rising again.