TB Parts 1-2

Question 1

Define natural hazards

Answer 1

Natural events that cause harm and loss to humans

Question 2

Define natural disasters

Answer 2

Natural hazards that cause a GREAT loss of life and SEVERE property damage

Question 3

Name geological hazards

Answer 3

Volcanic eruption, earthquake, and landslide

Question 4

Cause of geological hazards

Answer 4

Geological process and earth movement

Question 5

Name meteorological hazards

Answer 5

Drought, flood, typhoon

Question 6

Cause of meteorological hazards

Answer 6

Extreme weather or climate

Question 7

Name biological hazards

Answer 7

Pest

Question 8

Cause of biological hazards

Answer 8

Living organisms

Question 9

Define relief

Answer 9

Shape of land: height and steepness

Question 10

Ways of showing relief of place on map

Answer 10

Colouring: highland in brown and lowland in green
Contouring: using contour lines to join places of same height
Conventional signs: trigonometric stations and spot heights

Question 11

What does a cross section show

Answer 11

Shape and height of land

Question 12

Vertical exaggeration formula

Answer 12

Vertical scale (cross section) / Horizontal scale (map)

Question 13

Reminders for drawing cross section

Answer 13

Add unit (m)
Draw destination names
Pay attention to ups and downs of places with same height
Write TIMES for vertical exaggeration calculation

Question 14

Define slope

Answer 14

An inclined ground surface

Question 15

How to tell if a slope is steep

Answer 15

Calculate slope gradient / wide apart contour lines: gentle, close together: steep

Question 16

Gradient formula

Answer 16

Ratio of vertical distance : horizontal distance (larger the ratio, steeper the slope)

Question 17

Close wide contours

Answer 17

Concave slope

Question 18

Wide close contours

Answer 18

Convex slope

Question 19

Contours bending towards higher ground

Answer 19

Valley

Question 20

Contours bending towards lower ground

Answer 20

Spur

Question 21

Contours very closely packed

Answer 21

Cliff

Question 22

Visualise plateau and basin cross section + contour

Question 23

Visualise ridge and saddles cross section + contour

Question 24

Highest peak and its location

Answer 24

Tai Mo Shan, near NT

Question 25

Second highest peak and its location

Answer 25

Lantau Peak, Lantau Island

Question 26

Location of Lion Rock

Answer 26

Near Kowloon

Question 27

Describe relief of Hong Kong

Answer 27

Hilly relief (most land >200m, Tai Mo Shan 957m) Few natural lowland areas (river valleys + coastal plains, Yuen Long Plain as the largest lowland) Reclamation (both sides of Victoria Harbour and some new towns like Sha Tin and Tseung Kwan O) Long and irregular coastlines -> many bays Plenty offshore islands