Topic 1 Hazardous Earth

Question 1

Landslide

Answer 1

Where there is a huge movement of rock down a steep sloap.

Question 2

Earths core

Answer 2

The innteemost part of the earth.

Question 3

Climate change

Answer 3

Any significant change in the earths climate over a long period of time

Question 4

Orbital changes

Answer 4

Orbital changes are variations in the way the Earth moves round the Sun

Question 5

What are the three orbital changes

Answer 5

Stretch, Tilt, Wobble

Question 6

What are the 3 natural causes of climate change

Answer 6

Orbital changes, Volcanic activity, Solar output, Asteroid collisions

Question 7

Evidience we have for natural climate change

Answer 7

Tree rings, ice cores, Historic records

Question 8

Tree rings

Answer 8

Most trees produce ine ring in their trumks every year and its thickness depends of the climate so when it colder/warmer the scientists could tell.

Question 9

Ice cores

Answer 9

Scientists would drill into ice sheets to get long cores of ice as ice sheets are made up of layers of ice one is formed every year

Question 10

Historical records

Answer 10

Things such as paintings, diaries alowed scientsist to see how the climate was back then

Question 11

What is the NATURAL greenhouse effect essention for

Answer 11

Keeping our planet warm

Question 12

What human activities are making the greenhouse effect stronger

Answer 12

Farming: such as farming libestock, rice paddies, deforestatiom
Industry: requires lots of energy lots of co2 emmissions
Energy: burning fossil fuels
Transport: cars, planes, ships ect.

Question 13

Evidence human acivity is causing climate change

Answer 13

Declining Arctic Ice
Global tempreture rise
Extreme weather events
Seal level risw
Warming oceons

Question 14

Define a tropical cyclone

Answer 14

A tropical cyclone is an intense low pressure weather systems with strong wind that spiral in the middle.

Question 15

Features of a tropical cyclone are

Answer 15

The eye, the eyewall

Question 16

The eye

Answer 16

This is the centre of the cyclone it is caused by very dense air

Question 17

The eyewall

Answer 17

This surrounds the eye and this si where all the swirling and strong winds are

Question 18

What are 2 physical hazards of tropical cyclones

Answer 18

Intense rainfall and landslides

Question 19

What are the impacts of physical hazards on people

Answer 19

May lead to some people drowning,
Many people are left without homes,
Little jobs availible unemployemnet rises
Food shortage

Question 20

What are the impacts of the physical hazards on the environment

Answer 20

Damages trees,

Wildlife is killed,

Question 21

What are some strategies to prepear and to respond to tropical cyclones

Answer 21

1) defences: such as sea walls
2) evacuation: getting people out of danger
3) forecasting: use satalite technology

Question 22

What cyclone hit America (developed country)

Answer 22

Hurricane Katrina

Question 23

What cyclone hit Myanmar (developing country)

Answer 23

Cyclone nargis

Question 24

What is the earths structure (clue 4 parts)

Answer 24

The centre of the earth is the core
Around the core is the mantle
The outer layer of the earth is the crust
The crust is divided into slabs

Question 25

Convergent boundaries

Answer 25

This is where two plates are moving towards eachother

Question 26

Divergent boundaries

Answer 26

Where two plates are moving away from eachother

Question 27

Conservative boundaries

Answer 27

This is where two boundaries are moving alonhsude eachother

Question 28

Which boundaries are volcanos found in

Answer 28

Convergent and divergent

Question 29

Composite volcanos

Answer 29

Occur at convergent plate boundaries

Creates gases

Question 30

Shield volcanos

Answer 30

Occur at divergent plate boundaries

Not explosive