natural hazards

Question 1

what is a natural hazard ?

Answer 1

a natural event that posed risks to people and property

Question 2

what are atmospheric hazards?

Answer 2

a hazard caused by weather and climate processes

e.g: a tornado or tropical storm

Question 3

what is a geological hazard?

Answer 3

a hazard caused by land or tectonic processes

e.g: earthquake or volcanic eruption

Question 4

what is geography

Answer 4

the study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources and political and economic activities.

Question 5

what are the two main categories of natural hazards

Answer 5

geological and atmospheric

Question 6

is an earthquake geological or atmospheric and define it

Answer 6

An earthquake is geological and it is shaking of the ground. it happens when tectonic plates move suddenly.

Question 7

is landslide geological or atmospheric and define it

Answer 7

landslide is geological and it is collapse of mass of earth or rock from a mountain or cliff.

Question 8

is a tropical storm geological or atmospheric and define it

Answer 8

tropical storm is atmospheric and it is a powerful storm (spiralling) that moves more than 75 miles per hour. brings intense wind and heavy rain.

Question 9

is a volcanic eruption geological or atmospheric and define it

Answer 9

geological and it is when a volcano emote materials such as ash,gas and lava

Question 10

is an avalanche geological or atmospheric and define it

Answer 10

an avalanche is geological and it is a mass of snow and ice falling rapidly down a mountainslide .

Question 11

how may a tropical storm pose risk to people and property

Answer 11

A tropical storm may pose risk to people by putting people into difficulties by the water which may harm them. It may also pose risk to property because the wind and heavy rain may damage houses and building. it can also damage railways and roads.

Question 12

what is deforestation

Answer 12

the deliberate cutting down of trees

Question 13

what is urbanisation

Answer 13

when the percentage of living in towns or cities increases

Question 14

what is a hazard risk ?

Answer 14

the probability or chance that a natural hazard with occur.

Question 15

what is climate change ?

Answer 15

A long term change in the earths weather patterns e.g temperature and rainfall

Question 16

define a plate boundary

Answer 16

the edge of a tectonic plate,where two plates meet

Question 17

define a constructive plate margin

Answer 17

where two plates pull apart,magma rises forming new land

Question 18

define a destructive

Answer 18

where oceanic and continental plates collide

Question 19

define a conservative plate margin

Answer 19

where two plates slide alongside eachother

Question 20

describe the distribution of earthquakes and volcanoes

Answer 20

most earthquake and volcanic zones are found close to tectonic plate boundaries.
70% of all earthquakes are found in the ‘ring of fire’ in the pacific ocean

Question 21

what are the different factors that affect risk

Answer 21

deforestation-causes soil to erode,prevents rain water from soaking into the ground. increases flooding

urbanisation-the more people living in cities=the impact of natural hazards increase. a higher death toll

climate change-rising temperature causes ice caps to melt which causes sea levels to rise+flood risks
level of development-earthquake proof buildings reduce death from building collapse. poorer countries= many deaths

Question 22

where is the epicentre

Answer 22

on the surface directly above the focus

Question 23

when did the haiti earthquake happen

Answer 23

on tuesday 12th january 2010 an earthquake measuring 7.0 struck haiti.

it is an lic near where the caribbean and north america plates meet.

Question 24

what are primary effects

Answer 24

directs result of something

Question 25

what are secondary effects

Answer 25

the knock of effects that come from the primary effects

flooding caused by landslide into a lake or river