2.2[b] Characteristics of Coastal Ecosystem

Question 1

What is a key characteristic of mangrove forests?
○ A) They are found in cold water regions
○ B) They have specialized roots called pneumatophores
○ C) They are composed mainly of coral polyps
○ D) They are found in deep ocean waters

Answer 1

B) They have specialized roots called pneumatophores

Question 2

Which coastal ecosystem is known for its high biodiversity and productivity?
○ A) Coral reefs
○ B) Salt marshes
○ C) Mangrove forests
○ D) Seagrass meadows

Answer 2

A) Coral reefs

Question 3

What is the primary function of seagrass meadows in coastal ecosystems?
○ A) Providing habitat for terrestrial animals
○ B) Stabilizing sediment and providing food
○ C) Forming large underwater mountains
○ D) Producing freshwater

Answer 3

B) Stabilizing sediment and providing food

Question 4

Which factor is essential for the growth of coral reefs?
○ A) High nutrient levels
○ B) Clear, clean water
○ C) Deep water
○ D) Low salinity

Answer 4

B) Clear, clean water

Question 5

What is the main role of salt marshes in coastal ecosystems?
○ A) Providing habitat for coral
○ B) Acting as nurseries for fish
○ C) Filtering pollutants and stabilizing sediment
○ D) Producing large amounts of oxygen

Answer 5

C) Filtering pollutants and stabilizing sediment

Question 6

Which coastal ecosystem is characterized by salt-tolerant grasses and bushes?
○ A) Mangrove forest
○ B) Salt marsh
○ C) Seagrass meadow
○ D) Coral reef

Answer 6

B) Salt marsh

Question 7

What is the primary benefit of coral reefs to coastal communities?
○ A) Providing food
○ B) Protecting shorelines
○ C) Supporting tourism
○ D) All of the above

Answer 7

D) All of the above

Question 8

Which coastal ecosystem acts as a natural barrier against storm surges?
○ A) Seagrass meadow
○ B) Coral reef
○ C) Salt marsh
○ D) Mangrove forest

Answer 8

D) Mangrove forest

Question 9

What is the main threat to coral reefs from climate change?
○ A) Increased salinity
○ B) Rising sea levels
○ C) Ocean acidification
○ D) Decreased sunlight

Answer 9

C) Ocean acidification

Question 10

Which type of coastal ecosystem is found in both tropical and subtropical regions?
○ A) Kelp forest
○ B) Salt marsh
○ C) Mangrove forest
○ D) Coral reef

Answer 10

C) Mangrove forest

Question 11

What is the primary cause of coral bleaching?
○ A) Pollution
○ B) Overfishing
○ C) Increased water temperature
○ D) Sedimentation

Answer 11

C) Increased water temperature

Question 12

Which coastal ecosystem is formed by flowering underwater plants?
○ A) Coral reef
○ B) Seagrass meadow
○ C) Kelp forest
○ D) Salt marsh

Answer 12

B) Seagrass meadow

Question 13

What is the main role of estuaries in coastal ecosystems?
○ A) Providing habitat for coral
○ B) Acting as nurseries for fish
○ C) Filtering pollutants
○ D) Both B and C

Answer 13

D) Both B and C

Question 14

Which factor does NOT affect the distribution of coral reefs?
○ A) Temperature
○ B) Light
○ C) Water depth
○ D) Wind speed

Answer 14

D) Wind speed

Question 15

What is the primary function of kelp forests in marine ecosystems?
○ A) Providing food
○ B) Offering shelter
○ C) Stabilizing sediment
○ D) All of the above

Answer 15

D) All of the above

Question 16

Which coastal ecosystem is known for its ability to store large amounts of carbon?
○ A) Coral reef
○ B) Mangrove forest
○ C) Seagrass meadow
○ D) Salt marsh

Answer 16

B) Mangrove forest

Question 17

What is the main threat to mangrove forests?
○ A) Overfishing
○ B) Deforestation
○ C) Climate change
○ D) Pollution

Answer 17

B) Deforestation

Question 18

Which coastal ecosystem is found in temperate regions and higher latitudes?
○ A) Mangrove forest
○ B) Coral reef
○ C) Salt marsh
○ D) Seagrass meadow

Answer 18

C) Salt marsh

Question 19

What is the primary function of coral polyps in a reef?
○ A) Photosynthesis
○ B) Building the reef structure
○ C) Filtering water
○ D) Providing food for fish

Answer 19

B) Building the reef structure

Question 20

Which coastal ecosystem provides essential nursery habitats for many marine
species?
○ A) Coral reef
○ B) Mangrove forest
○ C) Seagrass meadow
○ D) All of the above

Answer 20

D) All of the above