F4 Geog Unit 2.3 (Middle and lower course)

F4 Geog Unit 2.3 (Middle and lower course)

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Let's take a look at the cross section of a meander.

Past paper and textbook practice

Multiple Choice

past paper

p.31 2017 DSE Q15

• A

• B

• C

• D

Multiple Choice

past paper

p.30 2016 DSE Q16

• A

• B

• C

• D

Multiple Choice

past paper

p.18 2008 CE Q46

• A

• B

• C

• D

Multiple Choice

textbook

p.47 Q1

• A

• B

• C

• D

Fluvial landforms in the lower course of river

Multiple Choice

River characteristics at the lower course:

It has the __________ discharge among the three courses.

• highest

• lowest

Multiple Choice

River characteristics at the lower course:

It has the highest discharge among the three courses.

a. The channel here accommodates ___________ water than that of the upper and middle course. The lower course has the highest energy.

• more

• less

Multiple Choice

b. The river bed is __________.

• smooth

• rugged

Multiple Choice

b. The river bed is smooth, so the friction here is greatly _________.

• reduced

• risen

Multiple Choice

b. The river bed is smooth, so the friction here is greatly reduced. Therefore, the flows are at a _________ speed.

• high

• low

Watch a video about lower course fluvial landforms.

Open Ended

Describe the appearance of fluvial landform b.

(b) floodplains

Refer to p.45 of your textbook.

Answer questions 1 and 2.

Open Ended

Q1. How do people use the floodplains? Why?

Open Ended

Q3. Do you know where the largest plain in Hong Kong is? What does it call?

Draw annotated diagrams to show its formation.

Let's draw a cross section along XY on the note.

Multiple Choice

The answer for this question is...

• A

• B

• C

• D

Multiple Choice

Account for the formation = favourable conditions / factors

• A

• B

• C

• D

Multiple Choice

The answer for this question is ...

• A

• B

• C

• D

The favourable conditions for the formation of delta

• 1. The river must carry a large amount of sediment [ e.g. –Deforestation upstream; –Erosion in upper course produces more load; –Absence of lakes along the river course]

• 2. The sea must have a small tidal range and weak currents which favour deposition. [i.e. weak wave erosion, eg. gentle offshore gradient, shallow coastal water]

The favourable conditions for the formation of delta

• 3. The rate of deposition is faster than the rate of removal of deposits [ i.e. erosion] [deposition will be easier with the presence of mangrove and with gentler gradient]

• 4. The sea must be calm at the mouth of the river and is sheltered.

Revision Exercise

Past paper MCQ

Multiple Choice

past paper 2017 HKDSE Q16

• A

• B

• C

• D

Multiple Choice

past paper 2010 CE Q26

• A

• B

• C

• D

Multiple Choice

past paper p.20 2010 CE Q22

• A

• B

• C

• D

Multiple Choice

past paper 2009 CE Q22

• A

• B

• C

• D

Multiple Choice

past paper 2008CE Q47

• A

• B

• C

• D

Multiple Choice

past paper 2008CE Q49

• A

• B

• C

• D

Multiple Choice

past paper 2007CE Q36 [fluvial features]

• A

• B

• C

• D

Multiple Choice

past paper 2007CE Q34 [features from source to mouth]

• A

• B

• C

• D

Multiple Choice

past paper 2006CE Q47

• A

• B

• C

• D

Multiple Choice

past paper 2006CE Q44

• A

• B

• C

• D

Multiple Choice

past paper 2004CE Q45

[delete (3), Change (4) to (3)]

[A. (1) and (2) only]

[B. (1) and (3) only]

[C. (2) and (3) only]

[D. (1), (2) and (3)]

• A

• B

• C

• D

Multiple Choice

past paper 2004CE Q46

• A

• B

• C

• D

Multiple Choice

past paper 2004CE Q36

• A

• B

• C

• D

Multiple Choice

past paper 2003CE Q14

• A

• B

• C

• D

Multiple Choice

past paper 1997CE Q22

• A

• B

• C

• D

Multiple Choice

past paper 1994CE Q16

• A

• B

• C

• D

Multiple Choice

past paper 1994CE Q6

• A

• B

• C

• D

Multiple Choice

past paper 1993CE Q49

• A

• B

• C

• D

Multiple Choice

past paper 1993CE Q7

• A

• B

• C

• D

Multiple Choice

past paper 2013 HKDSE Q15 [delta]

• A

• B

• C

• D

Multiple Choice

past paper PP HKDSE Q12 [delta]

• A

• B

• C

• D

Multiple Choice

past paper 1996CE Q14 [delta]

• A

• B

• C

• D

Multiple Choice

past paper p.36 2000CE DBQQ3

Refer to Figure 3.

Identify river course Q.

• Upper

• Middle

• Lower

• D

Multiple Choice

past paper p.36 2000CE DBQQ3

Refer to Figure 3.

Identify river course R.

• Upper

• Middle

• Lower

• D

Open Ended

past paper p.36 2000CE DBQQ3

Refer to Figure 3.

Compare the characteristics of river courses Q and R. (3 marks)

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Open Ended

past paper p.36 2001CE DBQQ3

Refer to Figure 3.

How does the work of the river affect the channel characteristics of feature A?

1. What do we mean by work of river? Give examples.

Multiple Select

past paper p.36 2001CE DBQQ3

Refer to Figure 3.

How does the work of the river affect the channel characteristics of feature A?

1. Which work of river should be used to do the elaboration?

• river erosion

• river transportation

• river deposition

Multiple Choice

past paper p.36 2001CE DBQQ3

Refer to Figure 3.

How does the work of the river affect the channel characteristics of feature A?

2. Which type of erosion is dominant in the lower course here?

• headward

• lateral

• vertical

Open Ended

past paper p.36 2001CE DBQQ3

Refer to Figure 3.

How does the work of the river affect the channel characteristics of feature A?

2. Lateral erosion has _____ the channel. Lateral erosion in the outer bank has made the river bank becomes more ________, creating _________.

Open Ended

past paper p.36 2001CE DBQQ3

Refer to Figure 3.

How does the work of the river affect the channel characteristics of feature A?

3. Deposition in the inner bank has made the river bank becomes more ________, creating _________.

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Open Ended

past paper p.36 2001CE DBQQ3

Refer to Figure 3.

(c) What are some favourable conditions for the formation of feature B?