Matric Geography 3

Question 1

On a topographic map, what does a contour line represent?

Accepted Answer

A line connecting points of equal altitude above sea level

Answer

A line connecting points of equal rainfall

Answer

A line connecting points of equal temperature

Answer

A provincial boundary line

Question 2

On a 1:50 000 topographic map, two points are 4 cm apart. What is the actual ground distance between them?

Accepted Answer

2 km

Answer

500 m

Answer

1 km

Answer

4 km

Question 3

What is the contour interval on a map?

Accepted Answer

The fixed difference in elevation between consecutive contour lines

Answer

The distance between two points on a map

Answer

The steepness of a slope

Answer

The ratio between map distance and ground distance

Question 4

Which of the following is a direct consequence of deforestation?

Accepted Answer

Increased soil erosion by wind and water

Answer

Increased biodiversity in the area

Answer

Decreased levels of carbon dioxide

Answer

Increased rainfall in the region

Question 5

What is the primary chemical cause of ozone layer depletion in the stratosphere?

Accepted Answer

Chlorofluorocarbons (CFCs)

Answer

Carbon dioxide (CO₂)

Answer

Methane (CH₄)

Answer

Nitrogen dioxide (NO₂)

Question 6

On a standard South African topographic map (1:50 000), what colour is conventionally used to represent water features such as rivers and dams?

Accepted Answer

Blue

Answer

Green

Answer

Brown

Answer

Black

Question 7

What concept describes development that meets the needs of the present generation without compromising the ability of future generations to meet their own needs?

Accepted Answer

Sustainable development

Answer

Conservation

Answer

Preservation

Answer

Environmental impact assessment