GGH3701 Assignment 2 Revision
Read the following statement and indicate whether it is TRUE or FALSE:
Improvements in fishing methods result in greater numbers and varieties (sizes and
species) of fish being caught, but fishing in the Southern African region remains
sustainable and no overfishing is taking place. ...ANSWER...False ✔
Read the following:
Members of a growing settlement near St. Lucia in South Africa have observed that the
estuary has dried up; in fact, the estuary has been permanently cut off from the sea.
Sightings of some endemic estuarine organisms have also decreased, and it seems that
the whole estuary has been lost.
Evaluate and select the primary cause for this observation.
1. Shipping and transportation of goods
2. Periodic extended droughts
3. Increased freshwater needs owing to coastal developments
4. Increased freshwater pollution from various settlements ...ANSWER...3. Increased
freshwater needs owing to coastal developments ✔
Durban Bay located in the eThekwini municipality has become physically vulnerable
especially after April 2022 primarily due to --- and ---.
1. increased flooding; accelerated erosion
2. increased agriculture; economic growth
3. mineral exploration; shipping
4. pollution; decreased rainfall ... ANSWER...Increased flooding; accelerated erosion ✔
Read the following:
An urban settlement with surrounding agricultural areas is located upstream of an
estuary. The urban settlement has been growing quite rapidly and there is pressure on
agricultural activities to sustain the growing human population. An estuary located
downstream is consequently negatively affected - the estuary mouth has closed
permanently.
Evaluate and select which ONE of the following puts the biggest pressure on the
estuary?
, 1. Rapid rate of soil erosion
2. Loss of fish species
3. Oil pollution from shipping
4. Human health issues ...ANSWER...1. Rapid rate of soil erosion ✔
Read the following:
Recent reports focused on the assessment of water quality of some of South Africa's
major beaches. The reports have shown a general downward trend in the standard of
water quality especially in regions which have experienced rapid population growth.
Evaluate the given scenario and determine which one of the following is the primary
cause for this observation.
1. Increased shipping and transportation of goods
2. Increased freshwater needs owing to coastal developments
3. Inadequate sewage works and systems
4. More frequent floods and periodic extended droughts ...ANSWER...3. Inadequate
sewage works and systems ✔
Read the following statement and indicate whether it is TRUE or FALSE:
Fertility determines the age structure and age distribution of a
population. ...ANSWER...True ✔
Which ONE of the following is commonly used to measure the social and economic
impact of age structures in a specific population?
1. Quality of life
2. Gender differences
3. Age structure
4. Dependency ratio ...ANSWER...4. Dependency ratio ✔
Read the following statement and indicate whether it is TRUE or FALSE:
Pro-natalist policies are implemented in countries that are characterised by ageing
populations with a slow natural increase or a natural decrease. ...ANSWER...True ✔
Read the following statement and indicate whether it is TRUE or FALSE:
Population change is described as a function of the three main demographic processes
fertility, mortality and migration which determine the extent to which the size of a
particular population changes over time. ...ANSWER...True ✔
Read the following statement and indicate whether it is TRUE or FALSE:
Birth, death and migration are all three biological events which only occur once in every
person's lifetime, having a similar influence on population change. ...ANSWER...False ✔
Read the following:
Read the following statement and indicate whether it is TRUE or FALSE:
Improvements in fishing methods result in greater numbers and varieties (sizes and
species) of fish being caught, but fishing in the Southern African region remains
sustainable and no overfishing is taking place. ...ANSWER...False ✔
Read the following:
Members of a growing settlement near St. Lucia in South Africa have observed that the
estuary has dried up; in fact, the estuary has been permanently cut off from the sea.
Sightings of some endemic estuarine organisms have also decreased, and it seems that
the whole estuary has been lost.
Evaluate and select the primary cause for this observation.
1. Shipping and transportation of goods
2. Periodic extended droughts
3. Increased freshwater needs owing to coastal developments
4. Increased freshwater pollution from various settlements ...ANSWER...3. Increased
freshwater needs owing to coastal developments ✔
Durban Bay located in the eThekwini municipality has become physically vulnerable
especially after April 2022 primarily due to --- and ---.
1. increased flooding; accelerated erosion
2. increased agriculture; economic growth
3. mineral exploration; shipping
4. pollution; decreased rainfall ... ANSWER...Increased flooding; accelerated erosion ✔
Read the following:
An urban settlement with surrounding agricultural areas is located upstream of an
estuary. The urban settlement has been growing quite rapidly and there is pressure on
agricultural activities to sustain the growing human population. An estuary located
downstream is consequently negatively affected - the estuary mouth has closed
permanently.
Evaluate and select which ONE of the following puts the biggest pressure on the
estuary?
, 1. Rapid rate of soil erosion
2. Loss of fish species
3. Oil pollution from shipping
4. Human health issues ...ANSWER...1. Rapid rate of soil erosion ✔
Read the following:
Recent reports focused on the assessment of water quality of some of South Africa's
major beaches. The reports have shown a general downward trend in the standard of
water quality especially in regions which have experienced rapid population growth.
Evaluate the given scenario and determine which one of the following is the primary
cause for this observation.
1. Increased shipping and transportation of goods
2. Increased freshwater needs owing to coastal developments
3. Inadequate sewage works and systems
4. More frequent floods and periodic extended droughts ...ANSWER...3. Inadequate
sewage works and systems ✔
Read the following statement and indicate whether it is TRUE or FALSE:
Fertility determines the age structure and age distribution of a
population. ...ANSWER...True ✔
Which ONE of the following is commonly used to measure the social and economic
impact of age structures in a specific population?
1. Quality of life
2. Gender differences
3. Age structure
4. Dependency ratio ...ANSWER...4. Dependency ratio ✔
Read the following statement and indicate whether it is TRUE or FALSE:
Pro-natalist policies are implemented in countries that are characterised by ageing
populations with a slow natural increase or a natural decrease. ...ANSWER...True ✔
Read the following statement and indicate whether it is TRUE or FALSE:
Population change is described as a function of the three main demographic processes
fertility, mortality and migration which determine the extent to which the size of a
particular population changes over time. ...ANSWER...True ✔
Read the following statement and indicate whether it is TRUE or FALSE:
Birth, death and migration are all three biological events which only occur once in every
person's lifetime, having a similar influence on population change. ...ANSWER...False ✔
Read the following:
