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Sec 1 G3 GE Chapter 5.6 - 5.8: Mangroves

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.

Where can mangroves usually be found?

a)

In deserts

b)

In tropical rainforest

c)

On glaciers

d)

Near the coast

2.

Salinity refers to the level of _____ in the water.

a)

oxygen

b)

salt

c)

nitrogen

d)

salcite

3.

In which countries are you most likely to find mangroves? (Can pick more than one)

a)

Singapore

b)

Malaysia

c)

Indonesia

d)

United Kingdom

4.

What kind of conditions are necessary for mangroves to thrive in?

a)

Saline water

b)

Calm water

c)

Deep

d)

Shallow river mouths

e)

Exposed

5.

Most mangrove forests are found...

a)

...in the northern hemisphere

b)

...in the tropics

c)

...in high latitudes

d)

...in Europe

6.

Which here is a characteristic of mangrove forests? (Can pick more than one)

a)

Have horizontal layers

b)

Have vertical layers

c)

Have a relatively uniform height

d)

Large variety of mangrove plants

7.

Which of this statements is true about mangrove forests? (Pick more than one)

a)

Mangroves have low diversity of mangrove trees.

b)

Mangroves have high diversity of mangrove trees.

c)

Mangroves have high biodiversity.

d)

Mangroves have low biodiversity.

8.

This is a (a)   leaf.

9.

Which type of forests can be found in / around Singapore?

a)

Tropical Rainforest

b)

Mangrove forest

c)

None

d)

Both tropical rainforest and mangrove forest

10.

Tropical rainforests and mangrove forests survive well in a place that experiences...

a)

Tropical climate

b)

High annual rainfall

c)

High annual mean temperature

d)

All of the above

11.

Which of the following is not part of the harsh environments mangroves endure

a)

High salt

b)

Hard ground

c)

Low oxygen

d)

Varying Tides

12.

Mangroves are found along sheltered coastal areas.

a)

True

b)

False

13.

Mangroves require (a)   water conditions to accumulate nutrients and grow seedlings.

14.

Both the tropical rainforests and mangroves are EVERGREEN because:

a)

Do not shed all of their leaves at particular times of the year.

b)

They don't shed leaves.

c)

Continuously grow new leaves to replace older ones that die and fall off, maintaining a constantly green appearance.

15.

The mangrove forests have a larger biodiversity as compared to the tropical rainforests.

a)

True

b)

False

16.

There are only 60-70 species of mangrove trees species worldwide because not many plant species have evolved to survive in waters with high salinity.

a)

True

b)

False

17.

Prop roots serves the following purpose:

a)

Anchor trees firmly to the ground

b)

Take in oxygen

c)

Provides shelter to aquatic life

18.

The inland zone is the furthest away from the sea.

a)

True

b)

False

19.

Trees in the inland zone are the MOST resistant to salty water.

a)

True

b)

False

20.

Which of the following describes the characteristics of the Sonneratia tree?

a)

They are not able to secret salt through their leaves

b)

They deposit excess salt in older leaves

c)

They will shed the older leaves with excess salt.

d)

They will also store salt in the roots.