Font size
WorksheetsMangrove Forests
Total questions: 24
Worksheet time: 25mins
What are some conditions required for mangroves to thrive? (Select all that apply)
Tropical & subtropical climate
Stagnant freshwater
Muddy, silted substrates
Intertidal zones with tidal action
Protection from wave action
What is the optimal temperature range for mangroves to be in?
25°C to 35°C
5°C to 15°C
37°C to 42°C
10°C to 20°C
What is an intertidal zone?
What does the term 'brackish' mean
What is a 'halophyte'?
A plant that cannot tolerate any salinity in the soil or water.
A plant that thrives in extreme cold temperatures.
A plant that can tolerate low salinity in the soil or water.
A plant that can tolerate high salinity in the soil or water.
A type of animal that lives in saltwater environments.
What is the average salinity range of the ocean? (In PPT)
Define a mangrove forest
Which of these are characteristics of mangrove forests? (Select all that apply)
High biodiversity
Many mutualistic relationships
Large root systems
Only found on tectonic boundaries
Which of these are types of mangrove forests? (Select all that apply)
Red mangroves
White mangroves
Black mangroves
Green mangroves
Black mangroves have different roots compared to other mangroves, these are called (a)
Red mangroves have different roots to black mangroves, these are called ____ _____
(a)
What is the purpose of lenticels?
Help in movement of resources within the plant
Prevent salt from entering the plant
Provide oxygen
Help in seed dispersal
What do sacrificial leaves do?
True or false: Mangrove trees give birth to live young.
What is a keystone species?
A species that is always at the top of the food chain.
A species that is only found in marine environments.
A species that significantly influences its environment, even though it is not very abundant.
A species that has no impact on its ecosystem.
A species that is very common in its environment.
Why are mangrove trees keystone species?
They are very abundant
They provide essential habitat for many marine and terrestrial species
They are immune to pollution
They grow faster than other types of trees
Mangrove forest slow down water flow and build up large mudflats in a process called ________ ________
(a)
How does sediment trapping stabilise the coastline?
By building land, supporting vegetation, and buffering against erosion and storms.
How do mangrove forests help protect the coastline?
Act as a natural barrier against storms, waves, and erosion by strengthening the shoreline with their dense root systems.
Attract more storms to the coastline
Increase the rate of erosion along the coastline
Release chemicals that strengthen the coastline
Why are mangroves important?
How will climate change affect mangrove forests?
Mangrove forests will thrive due to warmer waters and lower ocean salinity
Mangrove forests will suffer due to less crabs and other crustaceans in the ocean
Reduce their extent due to rising sea levels and increased storm intensity and other changes in weather
What threats do mangrove forests face?
What is the biggest threat to Southeast Asia's mangroves?
Shrimp farms
Paddy fields
Land reclamation
Increased annual rainfall
What can we do to protect mangrove forests?
